 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 1 the sst logo and superflash are registered trademarks of silicon storage technology, inc. sst is an authorized licensee of the compactflash? and cf[logo ]? trademarks. some data and tables are reproduced from the compactflash specification by permission of the compactflash association. these specifications are subject to change without no tice. data sheet features: ? compactflash association specification standard 8, 16, 24, 32, 48, 64, 96, 128, 192, and 256 mbyte capacities small form factor: 36.4 mm x 42.8 mm x 3.3 mm supports 5.0-volt and 3.3-volt read and write ? 4.5-5.5v, 3.135-3.465v for commercial pc card ata and true ide interface ? 512 bytes sector ? ata command set compatible low power consumption: ? active mode: 35 ma/55 ma (3.3v/5.0v)(typical) ? sleep mode: 100 a/150 a (3.3v/5.0v)(typical) data transfer rate to/from host ? 20 mb/s burst at 5.0v ? 6.6 mb/s burst at 3.3v high performance ? up to 1.4 mb/sec sustained write transfer rate (host to flash) controller overhead command to drq ? less than 0.5 ms zero data retention power ? batteries not required for data storage start up time ? sleep to read: 200 ns ? sleep to write: 200 ns ? reset to ready: 50 ms typical, 400 ms max. support for commercial temperature range ? 0c to +70c for operating commercial ? -25c to +85c non-operating (storage) extremely rugged and reliable ? built-in ecc support corrects 3 random bytes error per 512 byte sector ? 2000 g operating and non-operating shock intelligent ata/ide controller ? built-in microcontroller with intelligent firmware ? 256 bytes of attribute memory for storing cis information ? supports multiple-sector read/write operation to enhance system performance power management unit ? immediate disabling of unused circuitry product description sst?s compactflash (cf) card is an ultra-small, low cost, high performance, removable flash memory data storage system. this technology is well suited for solid state mass storage portable applications offering new and expanded functionality while enabling smaller and lighter designs. compactflash technology is widely used in a variety of consumer products such as portable computers, digital cameras, handheld data collection scanners, personal digital assistants (pdas), handy terminals, audio players, monitoring devices and set-top boxes. sst?s compactflash products provide complete pcmcia- ata functionality and compatibility. this is achieved because the 50-pin cf card can be easily slipped into a passive 68-pin type ii adapter card that fully meets pcm- cia electrical and mechanical interface specifications. sst?s compactflash products are also fully compliant with cfa standards. the sst cf card is read and written to using a single power supply of 5.0v or 3.3v and is available in 8 to 256 mbyte densities. sst?s compactflash cards contain additional attribute memory of 256 bytes for storing the card information structure (cis) information. sst?s compactflash card has built in microcontroller and file management firmware that communicates with ata standard interfaces; therefore, the sst?s compactflash cards do not require additional soft- ware for the host, such as flash file system (ffs) and memory technology driver (mtd). compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 sst48cfxxxata/ide standard compactflash card 8mb / 16mb / 24mb / 32mb / 48mb / 64mb / 96mb / 128mb / 192mb / 256mb
2 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 table of contents product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.0 general description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 performance-optimized ata controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 microcontroller unit (mcu). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.2 internal direct memory access (dma) control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.3 power management unit (pmu) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.4 sram buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.5 embedded flash file system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.6 error correction code (ecc) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 sst?s compactflash card product offering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.0 electrical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.0.1 pin assignment and pin type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 electrical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 card pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.3.1 input leakage current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.3.2 input characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.3 output drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.4 output drive characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.5 interface/bus timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.6 attribute memory read timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.3.7 configuration register (attribute memory) write timing specification. . . . . . . . . . . . . . . . . . . . . 16 2.3.8 common memory read timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.3.9 common memory write timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.3.10 i/o input (read) timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.3.11 i/o output (write) timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2.3.12 true ide mode i/o input (read) timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2.3.13 true ide mode i/o output (write) timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2.4 card configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.4.1 attribute memory function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.4.2 configuration option register (address 200h in attribute memory) . . . . . . . . . . . . . . . . . . . . . . 24 2.4.3 card configuration and status register (address 202h in attribute memory) . . . . . . . . . . . . . . 25 2.4.4 pin replacement register (address 204h in attribute memory) . . . . . . . . . . . . . . . . . . . . . . . . . 26 2.4.5 socket and copy register (address 206h in attribute memory) . . . . . . . . . . . . . . . . . . . . . . . . . 26 2.5 i/o transfer function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2.5.1 i/o function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2.6 common memory transfer function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2.6.1 common memory function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2.7 true ide mode i/o transfer function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 2.7.1 true ide mode i/o function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 3 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.0 software interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.1 cf-ata drive register set definition and protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.1.1 i/o primary and secondary address configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.1.2 contiguous i/o mapped addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.1.3 memory mapped addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.1.4 true ide mode addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.1.5 cf-ata registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.1.5.1 data register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.1.5.2 error register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.1.5.3 feature register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.1.5.4 sector count register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.1.5.5 sector number (lba 7-0) register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.1.5.6 cylinder low (lba 15-8) register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.1.5.7 cylinder high (lba 23-16) register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.1.5.8 drive/head (lba 27-24) register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.1.5.9 status & alternate status registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.1.5.10 device control register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.1.5.11 card (drive) address register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.2 cf-ata command description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.2.1 cf-ata command set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.2.1.1 check power mode - 98h or e5h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.2.1.2 execute drive diagnostic - 90h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.2.1.3 erase sector(s) - c0h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.2.1.4 format track - 50h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.2.1.5 identify drive - ech. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.2.1.5.1 general configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.2 default number of cylinders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.3 default number of heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.4 number of unformatted bytes per track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.5 number of unformatted bytes per sector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.6 default number of sectors per track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.7 number of sectors per card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.8 memory card serial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.9 buffer type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.10 buffer size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.11 ecc count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.12 firmware revision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.13 model number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.14 read/write multiple sector count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.2.1.5.15 capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.16 pio data transfer cycle timing mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.17 translation parameters valid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.18 current number of cylinders, heads, sectors/track . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.19 current capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.20 multiple sector setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.21 advanced pio data transfer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.22 minimum pio transfer cycle time without flow control . . . . . . . . . . . . . . . 43 3.2.1.5.23 minimum pio transfer cycle time with iordy . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.5.24 total sectors addressable in lba mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2.1.6 idle - 97h or e3h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.2.1.7 idle immediate - 95h or e1h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 4 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.8 initialize drive parameters - 91h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 3.2.1.9 read buffer - e4h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 3.2.1.10 read multiple - c4h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 3.2.1.11 read long sector - 22h or 23h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.2.1.12 read sector(s) - 20h or 21h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.2.1.13 read verify sector(s) - 40h or 41h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 3.2.1.14 recalibrate - 1xh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 3.2.1.15 request sense - 03h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 3.2.1.16 seek - 7xh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 3.2.1.17 set features - efh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 3.2.1.18 set multiple mode - c6h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 3.2.1.19 set sleep mode- 99h or e6h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 3.2.1.20 standby - 96h or e2h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 3.2.1.21 standby immediate - 94h or e0h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 3.2.1.22 translate sector - 87h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.2.1.23 wear level - f5h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.2.1.24 write buffer - e8h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3.2.1.25 write long sector - 32h or 33h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3.2.1.26 write multiple command - c5h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3.2.1.27 write multiple without erase - cdh. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 3.2.1.28 write sector(s) - 30h or 31h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 3.2.1.29 write sector(s) without erase - 38h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3.2.1.30 write verify - 3ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3.2.2 error posting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 4.0 appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1 differences between cf-ata and pc card-ata/true ide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.1 electrical differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.1.1 ttl compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.1.2 pull up resistor input leakage current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.2 functional differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.2.1 additional set features codes in cf-ata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.2.2 additional commands in cf-ata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.2.3 idle timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 4.1.2.4 recovery from sleep mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 5.0 physical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 6.0 product ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 6.1 valid combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 7.0 limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 7.1 life support policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 8.0 patent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 9.0 pcmcia standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 10.0 compactflash specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 11.0 related documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 5 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 1.0 general description the sst?s compactflash card contains a controller, embedded firmware storage and flash media in a match- book sized package with a 50-pin connector consisting of two rows of 25 female contacts each on 50 mil (1.27 mm) centers. refer to figure 1 for sst?s compactflash card block diagram. the controller interfaces with the host sys- tem allowing data to be written to and read from the flash media. 1.1 performance-optimized ata controller the heart of a compactflash card is the ata controller which translates standard ide/ata signals into flash media data and controls. sst?s compactflash card contains a proprietary ata controller that was specifically designed to attain high data throughput from host to flash. the following components contribute to the ata controller?s performance. 1.1.1 microcontroller unit (mcu) the mcu translates ide/ata commands into data and control signals required for flash memory operation. 1.1.2 internal direct memory access (dma) control the ata controller inside sst?s compactflash card uses dma allowing instant data transfer to memory. this imple- mentation eliminates controller overhead associated with traditional, firmware based, memory control, increasing data transfer rate. 1.1.3 power management unit (pmu) power management unit controls the power consumption of the compactflash card. the pmu dramatically extends product battery life by putting the part of the circuitry that is not in operation into sleep mode. 1.1.4 sram buffer a key contributor to the ata controller performance is a sram buffer. the buffer optimizes host?s data writes to flash media. 1.1.5 embedded flash file system embedded flash file system is an integral part of the sst?s atm controller. it contains mcu firmware that per- forms the following tasks: 1. translates host side signals into flash media writes and reads. 2. provides flash media wear leveling to spread the flash writes across all the memory address space to increase the longevity of flash media. 3. keeps track of data file structures. 1.1.6 error correction code (ecc) the ata controller contains ecc algorithm that corrects 3 bytes of error per 512 byte sector. figure 1: sst c ompact f lash b lock d iagram 375 ill1-1.4 embedded flash file system mcu ecc to host internal dma sram buffer ata controller pmu flash media 6 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 1.2 sst?s compactflash card product offering the sst48cfxxx high compactflash product family is available in 8 to 256 mbyte densities. the following table shows the specific capacity, default number of cylinder heads, sectors and cylinders for each product line. . 2.0 electrical interface 2.0.1 pin assignment and pin type the signal/pin assignments are listed in table 2-1. low active signals have a ?-? prefix. pin types are input, output or input/ output. section 2.3 defines the dc characteristics for all input and output type structures. 2.1 electrical description the compactflash card functions in three basic modes: 1) pc card ata using i/o mode, 2) pc card ata using memory mode and 3) true ide mode, which is compatible with most disk drives. the configuration of the compactflash card will be controlled using the standard pcmcia configuration registers starting at address 200h in the attribute memory space of the storage card or for true ide mode, pin 9 being grounded. table 2-2 describes the i/o signals. signals whose source is the host are designated as inputs while signals that the com- pactflash card sources are outputs. the compactflash card logic levels conform to those specified in the pcmcia release 2.1 and cfa specification rev. 1.4. as shown in table 2-2, each signal has three possible operating modes: 1) pc card memory, 2) pc card i/o and 3) true ide. all outputs from the card are totem pole except the data bus signals which are bi- directional tri-state. refer to section 2.3 for definitions of input and output type. model number density total bytes cylinders heads sectors SST48CF008 8 mb 8,028,160 245 2 32 sst48cf016 16 mb 16,023,552 489 2 32 sst48cf024 24 mb 24,051,712 367 4 32 sst48cf032 32 mb 32,047,104 489 4 32 sst48cf048 48 mb 48,037,888 733 4 32 sst48cf064 64 mb 64,028,672 977 4 32 sst48cf096 96 mb 96,075,776 733 8 32 sst48cf128 128 mb 128,057,344 977 8 32 sst48cf192 192 mb 192,151,552 733 16 32 sst48cf256 256 mb 256,114,688 977 16 32 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 7 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.2 card pin assignment table 2-1: c ard p in a ssignment (1 of 2) pin no. memory card mode i/o card mode true ide mode signal name pin type i/o type 1 signal name pin type i/o type 1 signal name pin type i/o type 1 1 gnd - gnd gnd - gnd gnd - gnd 2d 3 i/o i2d, o2 d 3 i/o i2d, o2 d 3 i/o i2d, o2 3d 4 i/o i2d, o2 d 4 i/o i2d, o2 d 4 i/o i2d, o2 4d 5 i/o i2d, o2 d 5 i/o i2d, o2 d 5 i/o i2d, o2 5d 6 i/o i2d, o2 d 6 i/o i2d, o2 d 6 i/o i2d, o2 6d 7 i/o i2d, o2 d 7 i/o i2d, o2 d 7 i/o i2d, o2 7-ce1i i3u-ce1i i3u-cs0i i3u 8 a10 i i2d a10 i i2d a10 i i2d 9 -oe i i3u -oe i i3u -atasel i i3u 10 a 9 ii2da 9 ii2da 9 ii2d 11 a 8 ii2da 8 ii2da 8 ii2d 12 a 7 ii2da 7 ii2da 7 ii2d 13 v dd -- v dd -- v dd -- 14 a 6 ii2da 6 ii2da 6 ii2d 15 a 5 ii2da 5 ii2da 5 ii2d 16 a 4 ii2da 4 ii2da 4 ii2d 17 a 3 ii2da 3 ii2da 3 ii2d 18 a 2 ii2da 2 ii2da 2 ii2d 19 a 1 ii2da 1 ii2da 1 ii2d 20 a 0 ii2da 0 ii2da 0 ii2d 21 d 0 i/o i2d, o2 d 0 i/o i2d, o2 d 0 i/o i2d, o2 22 d 1 i/o i2d, o2 d 1 i/o i2d, o2 d 1 i/o i2d, o2 23 d 2 i/o i2d, o2 d 2 i/o i2d, o2 d 2 i/o i2d, o2 24 wp o o2 -iois16 o o2 -iois16 o o2 25 -cd2 o ground -cd2 o ground -cd2 o ground 26 -cd1 o ground -cd1 o ground -cd1 o ground 27 d 11 i/o i2d, o2 d 11 i/o i2d, o2 d 11 i/o i2d, o2 28 d 12 i/o i2d, o2 d 12 i/o i2d, o2 d 12 i/o i2d, o2 29 d 13 i/o i2d, o2 d 13 i/o i2d, o2 d 13 i/o i2d, o2 30 d 14 i/o i2d, o2 d 14 i/o i2d, o2 d 14 i/o i2d, o2 31 d 15 i/o i2d, o2 d 15 i/o i2d, o2 d 15 i/o i2d, o2 32 -ce2 i i3u -ce2 i i3u -cs1 i i3u 33 -vs1 o ground -vs1 o ground -vs1 o ground 34 -iord i i3u -iord i i3u -iord i i3u 35 -iowr i i3u -iowr i i3u -iowr i i3u 36 -we i i3u -we i i3u -we i i3u 37 rdy/-bsy o o1 -ireq o o1 intrq o o1 38 v dd -- v dd -- v dd -- 39 -csel i i2u -csel i i2u -csel i i2u 40 -vs2 o open -vs2 o open -vs2 o open 8 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 41 reset i i4u reset i i4u -reset i i4u 42 -wait o o1 -wait o o1 iordy o o1 43 -inpack o o1 -inpack o o1 -inpack o o1 44 -reg i i3u -reg i i3u -reg i i3u 45 bvd2 o i2u, o1 -spkr o i2u, o1 -dasp o i2u, o1 46 bvd1 o i2u, o1 -stschg o i2u, o1 -pdiag o i2u, o1 47 d 8 i/o i2d, o2 d 8 i/o i2d, o2 d 8 i/o i2d, o2 48 d 9 i/o i2d, o2 d 9 i/o i2d, o2 d 9 i/o i2d, o2 49 d 10 i/o i2d, o2 d 10 i/o i2d, o2 d 10 i/o i2d, o2 50 gnd - gnd gnd - gnd gnd - gnd t2-1.2 375 1. please refer to sections 2.3.1 to 2.3.4 for detail. table 2-1: c ard p in a ssignment (c ontinued ) (2 of 2) pin no. memory card mode i/o card mode true ide mode signal name pin type i/o type 1 signal name pin type i/o type 1 signal name pin type i/o type 1 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 9 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 table 2-2: s ignal d escription (1 of 4) symbol type 1 pin name and functions a 10 - a 0 (pc card memory mode) i 8,10,11,12, 14,15,16,17, 18,19,20 these address lines along with the -reg signal are used to select the following: the i/o port address registers within the compact- flash card, the memory mapped port address registers within the compactflash card, a byte in the card?s information structure and its configuration control and status registers. a 10 - a 0 (pc card i/o mode) this signal is the same as the pc card memory mode signal a 2 - a 0 (true ide mode i 18,19,20 in true ide mode only a[2:0] are used to select the one of eight (true ide mode) registers in the task file, the remaining address lines should be grounded by the host. bvd1 (pc card memory mode) i/o 46 this signal is asserted high as the bvd1 signal since a battery is not used with this product. -stschg (pc card i/o mode) this signal is asserted low to alert the host to changes in the rdy/- bsy and write protect states, while the i/o interface is configured. its use is controlled by the card config and status register. status changed -pdiag (true ide mode) in the true ide mode, this input/output is the pass diagnostic signal in the master/slave handshake protocol. bvd2 (pc card memory mode) i/o 45 this output line is always driven to a high state in memory mode since a battery is not required for this product. -spkr (pc card i/o mode) this output line is always driven to a high state in i/o mode since this product does not support the audio function. -dasp (true ide mode) in the true ide mode, this input/output is the disk active/slave present signal in the master/slave handshake protocol. -cd1, -cd2 (pc card memory mode) o 26,25 these card detect pins are connected to ground on the compact- flash card. they are used by the host to determine that the com- pactflash card is fully inserted into its socket. -cd1, -cd2 (pc card i/o mode) this signal is the same for all modes. -cd1, -cd2 (true ide mode) this signal is the same for all modes. -ce1, -ce2 (pc card memory mode) card enable i 7,32 these input signals are used both to select the card and to indicate to the card whether a byte or a word operation is being performed. - ce2 always accesses the odd byte of the word. -ce1 accesses the even byte or the odd byte of the word depending on a 0 and -ce2. a multiplexing scheme based on a 0 , -ce1, -ce2 allows 8 bit hosts to access all data on d 0 -d 7 . see tables 2-11, 2-13, 2-16, 2-17, and 2-18. -ce1, -ce2 (pc card i/o mode) card enable this signal is the same as the pc card memory mode signal. -cs0, -cs1 (true ide mode) in the true ide mode cs0 is the chip select for the task file registers while cs2 is used to select the alternate status register and the device control register. 10 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 -csel (pc card memory mode) i 39 this signal is not used for this mode. -csel (pc card i/o mode) this signal is not used for this mode. -csel (true ide mode) this internally pulled up signal is used to configure this device as a master or a slave when configured in the true ide mode. when this pin is grounded, this device is configured as a master. when the pin is open, this device is configured as a slave. d15 - d00 (pc card memory mode) i/o 31,30,29,28, 27,49,48,47, 6,5,4,3,2, 23, 22, 21 these lines carry the data, commands and status information between the host and the controller. d00 is the lsb of the even byte of the word. d08 is the lsb of the odd byte of the word. d15 - d00 (pc card i/o mode) this signal is the same as the pc card memory mode signal. d15 - d00 (true ide mode) in true ide mode, all task file operations occur in byte-mode on the low order bus d00-d07 while all data transfers are 16 bit using d00- d15. gnd (pc card memory mode) - 1,50 ground. gnd (pc card i/o mode) this signal is the same for all modes. gnd (true ide mode) this signal is the same for all modes. -inpack (pc card memory mode) o 43 this signal is not used in this mode. -inpack (pc card i/o mode) input acknowledge the input acknowledge signal is asserted by the compactflash card when the card is selected and responding to an i/o read cycle at the address that is on the address bus. this signal is used by the host to control the enable of any input data buffers between the com- pactflash card and the cpu. -inpack (true ide mode) in true ide mode this output signal is not used and should not be connected at the host. -iord (pc card memory mode) i 34 this signal is not used in this mode. -iord (pc card i/o mode) this is an i/o read strobe generated by the host. this signal gates i/o data onto the bus from the compactflash card when the card is configured to use the i/o interface. -iord (true ide mode) in true ide mode, this signal has the same function as in pc card i/o mode. -iowr (pc card memory mode) i 35 this signal is not used in this mode. -iowr (pc card i/o mode) the i/o write strobe pulse is used to clock i/o data on the card data bus into the compactflash card controller registers when the com- pactflash card is configured to use the i/o interface. -iowr (true ide mode) the clocking will occur on the negative to positive edge of the signal (trailing edge). in true ide mode, this signal has the same function as in pc card i/o mode. table 2-2: s ignal d escription (c ontinued ) (2 of 4) symbol type 1 pin name and functions data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 11 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 -oe (pc card memory mode) i 9 this is an output enable strobe generated by the host interface. it is used to read data from the compactflash card in memory mode and to read the cis and configuration registers. -oe (pc card i/o mode) in pc card i/o mode, this signal is used to read the cis and configu- ration registers. -ata sel (true ide mode) to enable true ide mode this input should be grounded by the host. rdy/-bsy pc card memory mode) o 37 in memory mode this signal is set high when the compactflash card is ready to accept a new data transfer operation and held low when the card is busy. the host memory card socket must provide a pull- up resistor. at power up and at reset, the rdy/-bsy signal is held low (busy) until the compactflash card has completed its power up or reset function. no access of any type should be made to the compact- flash card during this time. the rdy/-bsy signal is held high (dis- abled from being busy) whenever the following condition is true: the compactflash card has been powered up with +reset continu- ously disconnected or asserted. -ireq pc card i/o mode) i/o operation - after the compactflash card has been configured for i/o operation, this signal is used as -interrupt request. this line is strobed low to generate a pulse mode interrupt or held low for a level mode interrupt. intrq (true ide mode) in true ide mode signal is the active high interrupt request to the host. -reg (pc card memory mode) i 44 this signal is used during memory cycles to distinguish between common memory and register (attribute) memory attribute memory select accesses. high for common memory, low for attribute mem- ory. -reg pc card i/o mode) the signal must also be active (low) during i/o cycles when the i/o address is on the bus. -reg (true ide mode) in true ide mode this input signal is not used and should be con- nected to v dd by the host. reset (pc card memory mode) i 41 when the pin is high, this signal resets the compactflash card. the compactflash card is reset only at power up if this pin is left high or open from power-up. the compactflash card is also reset when the soft reset bit in the card configuration option register is set. reset (pc card i/o mode) this signal is the same as the pc card memory mode signal. -reset (true ide mode) in the true ide mode this input pin is the active low hardware reset from the host. v dd (pc card memory mode) - 13,38 +5.0v, +3.3v power. v dd (pc card i/o mode) this signal is the same for all modes. v dd (true ide mode) this signal is the same for all modes. table 2-2: s ignal d escription (c ontinued ) (3 of 4) symbol type 1 pin name and functions 12 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 -vs1 -vs2 (pc card memory mode) o33 40 voltage sense signals. -vs1 is grounded so that the compactflash card cis can be read at 3.3v and -vs2 is reserved by pcmcia for a secondary voltage. -vs1 -vs2 (pc card i/o mode) this signal is the same for all modes. -vs1 -vs2 (true ide mode) this signal is the same for all modes. -wait (pc card memory mode) o 42 the -wait signal is driven low by the compactflash card to signal the host to delay completion of a memory or i/o cycle that is in progress. -wait (pc card i/o mode) this signal is the same as the pc card memory mode signal. iordy (true ide mode) in true ide mode this output signal may be used as iordy. -we (pc card memory mode) i 36 this is a signal driven by the host and used for strobing memory write data to the registers of the compactflash card when the card is configured in the memory interface mode. it is also used for writing the configuration registers. -we (pc card i/o mode) in pc card i/o mode, this signal is used for writing the configuration registers. -we (true ide mode) in true ide mode this input signal is not used and should be con- nected to v dd by the host. wp (pc card memory mode) write protect o 24 memory mode - the compactflash card does not have a write protect switch. this signal is held low after the completion of the reset initialization sequence. -iois16 (pc card i/o mode) i/o operation - when the compactflash card is configured for i/o operation pin 24 is used for the -i/o selected is 16 bit port (-iois16) function. a low signal indicates that a 16 bit or odd byte only opera- tion can be performed at the addressed port. -iois16 (true ide mode) in true ide mode this output signal is asserted low when this device is expecting a word data transfer cycle. t2-2.0 375 1. i = input 0 = output table 2-2: s ignal d escription (c ontinued ) (4 of 4) symbol type 1 pin name and functions data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 13 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3 electrical specification the following table defines all d.c. characteristics for the sst compactflash card product family. unless otherwise stated, conditions are: non operating (storage) temperature range -25c to +85c v dd = 4.5-5.5v v dd = 3.135-3.465v ta = 0c to +70c compactflash products shall operate correctly in both voltage ranges as shown in the table above. to comply with this specification, current requirements must not exceed the maximum limit. 2.3.1 input leakage current in the table below, x refers to the characteristics described in section 2.3.2. for example, i1u indicates a pull up resistor with a type 1 input characteristic. a bsolute m aximum c onditions parameter symbol conditions input power v dd -0.3v min. to 6.5v max voltage on any pin except v dd with respect to gnd v -0.5v min. to v dd + 0.5v max i nput p ower voltage maximum average rms active current maximum average rms sleep current measurement method 3.135-3.465v 75 ma 200 a 3.3v at 25c 1 1. current measurement is accomplished by connecting an amp meter (set to the 2 amp scale range) in series with the v dd supply to the compactflash card. current measurements are to be taken wh ile looping on a data transfer command with a sector count of 128 . current consumption values for both read and write commands are not to exceed the maximum average rms current specified in this table 4.5-5.5v 100 ma 300 a 5.0v at 25c 1 type parameter symbol conditions min typ max units ixz input leakage current il v ih = v dd / v il = gnd -1 1 a ixu pull up resistor rpu1 v dd = 5.0v 50k 500k ohm ixd pull down resistor rpd1 v dd = 5.0v 50k 500k ohm 14 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.2 input characteristics 2.3.3 output drive type all output drive type are cmos level. 2.3.4 output drive characteristics 2.3.5 interface/bus timing there are two types of bus cycles and timing sequences that occur in the pcmcia type interface, a direct mapped i/o transfer and a memory access. the two timing sequences are explained in detail in the pcmcia pc card stan- dard. sst?s compactflash card conforms to the timing in that reference document. type parameter symbol min typ max min typ max units v dd = 3.3v v dd = 5.0v 1 input voltage v ih 2.4 2.4 volts cmos v il 0.6 0.8 2 input voltage v ih 2.0 2.7 volts cmos v il 0.8 0.8 3 input voltage v th 2.0 2.4 volts cmos schmitt trigger v tl 0.5 0.8 4 input voltage cmos v th 1.8 2.4 volts schmitt trigger v tl 0.9 0.8 type parameter symbol conditions min typ max units o1 output voltage v oh i oh = -4 ma v dd -0.8v volts v ol i ol = 4 ma gnd +0.4v o2 output voltage v oh i oh = -8 ma v dd -0.8v volts v ol i ol = 8 ma gnd +0.4v data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 15 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.6 attribute memory read timing specification the attribute memory access time is defined as 100 ns. detailed timing specifications are shown in table 2-3. figure 2-1: a ttribute m emory r ead t iming d iagram table 2-3: a ttribute m emory r ead t iming speed version 100 ns item symbol ieee symbol min 1 1. all times are in nanoseconds. d out signifies data provided by the compactflash card to the system. the -ce signal or both the -oe signal and the -we signal must be de-asserted between consecutive cycle operations. all ac specifications are guaranteed by design. max 1 read cycle time tc(r) tavav 100 address access time ta(a) tavqv 100 card enable access time ta(ce) telqv 100 output enable access time ta(oe) tglqv 50 output disable time from ce tdis(ce) tehqz 50 output disable time from oe tdis(oe) tghqz 50 address setup time tsu(a) tavgl 10 output enable time from ce ten(ce) telqnz 5 output enable time from oe ten(oe) tglqnz 5 data valid from address change tv(a) taxqx 0 t2-3.1 375 375 ill2-1.0 an tc(r) ta(a) ta(ce) ta(oe) dout tdis(oe) tdis(ce) tv(a) ten(ce) ten(oe) tsu(a) -reg -ce -oe dout 16 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.7 configuration register (attribute memory) write timing specification the card configuration write access time is defined as 100 ns. detailed timing specifications are shown in table 2-4. figure 2-2: c onfiguration r egister (a ttribute m emory ) w rite t iming d iagram table 2-4: c onfiguration r egister (a ttribute m emory ) w rite t iming speed version 100 ns item symbol ieee symbol min 1 1. all times are in nanoseconds. d in signifies data provided by the system to the compactflash card. all ac specifications are guaranteed by design. max 1 write cycle time tc(w) tavav 100 write pulse width tw(we) twlwh 60 address setup time tsu(a) tavwl 10 write recovery time trec(we) twmax 15 data setup time for we tsu(d-weh) tdvwh 40 data hold time th(d) twmdx 15 t2-4.1 375 375 ill2-2.0 -reg din valid tsu(d-weh) tw(we) tsu(a) trec(we) tc(w) th(d) an -we -ce -oe din data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 17 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.8 common memory read timing specification figure 2-3: c ommon m emory r ead t iming d iagram table 2-5: c ommon m emory r ead t iming item symbol ieee symbol min 1 ns 1. all times are in nanoseconds. all ac specifications are guaranteed by design. max 1 ns output enable access time ta(oe) tglqv 50 output disable time from oe tdis(oe) tghqz 50 address setup time tsu(a) tavgl 10 address hold time th(a) tghax 15 ce setup before oe tsu(ce) telgl 0 ce hold following oe th(ce) tgheh 15 t2-5.1 375 375 ill2-3.0 -reg th(ce) tdis(oe) tsu(ce) ta(oe) tsu(a) th(a) an -ce -oe dout dout 18 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.9 common memory write timing specification figure 2-4: c ommon m emory w rite t iming d iagram table 2-6: c ommon m emory w rite t iming item symbol ieee symbol min 1 ns 1. all times are in nanoseconds. all ac specifications are guaranteed by design. max 1 ns data setup before we tsu(d-weh) tdvwh 40 data hold following we th(d) twmdx 15 we pulse width tw(we) twlwh 60 address setup time tsu(a) tavwl 10 ce setup before we tsu(ce) telwl 0 write recovery time trec(we) twmax 15 address hold time th(a) tghax 15 ce hold following we th(ce) tgheh 15 t2-6.1 375 375 ill2-4.0 -reg th(ce) trec(we) th(d) tsu(ce) tw(we) tsu(d-weh) din valid tsu(a) th(a) an -ce -we din data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 19 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.10 i/o input (read) timing specification note: the maximum load on -inpack and -iois16 is 1 lsttl with 50pf total load. all ac specifications are guaranteed by design. figure 2-5: i/o r ead t iming d iagram table 2-7: i/o r ead t iming item symbol ieee symbol min 1 1. all times are in nanoseconds. max 1 data delay after iord td(iord) tlglqv 100 data hold following iord th(iord) tlghqx 0 iord width time tw(iord) tlgligh 165 address setup before iord tsua(iord) tavigl 70 address hold following iord tha(iord) tlghax 20 ce setup before iord tsuce(iord) teligl 5 ce hold following iord thce(iord) tlgheh 20 reg setup before iord tsureg(iord) trgligl 5 reg hold following iord threg(iord) tlghrgh 0 inpack delay falling from iord tdfinpack(iord) tlglial 0 45 inpack delay rising from iord tdrinpack(iord) tlghiah 45 iois16 delay falling from address tdfiois16(adr) tavisl 35 iois16 delay rising from address tdriois16(adr) tavish 35 t2-7.1 375 375 ill2-5.0 -reg tdrinpack(iord) tdfinpack(iord) tdriois16(adr) tha(iord) threg(iord) thce(iord) td(iord) th(iord) dout tw(iord) tsua(iord) tsureg(iord) tsuce(iord) an -ce -iord -inpack -iois16 dout tdfiois16(adr) 20 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.11 i/o output (write) timing specification note: the maximum load on -inpack, and -iois16 is 1 lsttl with 50pf total load. all ac specifications are guaranteed by design. figure 2-6: i/o w rite t iming d iagram table 2-8: i/o w rite t iming item symbol ieee symbol min 1 1. all times are in nanoseconds. max 1 data setup before iowr tsu(iowr) tdviwh 60 data hold following iowr th(iowr) tlwhdx 30 iowr width time tw(iowr) tlwliwh 165 address setup before iowr tsua(iowr) taviwl 70 address hold following iowr tha(iowr) tlwhax 20 ce setup before iowr tsuce(iowr) teliwl 5 ce hold following iowr thce(iowr) tlwheh 20 reg setup before iowr tsureg(iowr) trgliwl 5 reg hold following iowr threg(iowr) tlwhrgh 0 iois16 delay falling from address tdfiois16(adr) tavisl 35 iois16 delay rising from address tdriois16(adr) tavish 35 t2-8.1 375 375 ill2-6.0 -reg tdriois16(adr) tha(iowr) threg(iowr) thce(iowr) tw(iowr) tdfiois16(adr) tsu(iowr) th(iowr) din valid tsua(iowr) tsureg(iowr) tsuce(iowr) an -ce -iowr -iois16 din data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 21 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.12 true ide mode i/o input (read) timing specification note: the maximum load on -iois16 is 1 lsttl with 50pf total load. all ac specifications are guaranteed by design. figure 2-7: t rue ide m ode i/o r ead t iming d iagram table 2-9: t rue ide m ode i/o r ead t iming d iagram item symbol ieee symbol min 1 1. all times are in nanoseconds. max 1 data delay after iord td(iord) tlglqv 50 data hold following iord th(iord) tlghqx 5 iord width time tw(iord) tlgligh 70 address setup before iord tsua(iord) tavigl 25 address hold following iord tha(iord) tlghax 10 ce setup before iord tsuce(iord) teligl 10 ce hold following iord thce(iord) tlgheh 5 iois16 delay falling from address tdfiois16(adr) tavisl 20 iois16 delay rising from address tdriois16(adr) tavish 20 t2-9.2 375 375 ill2-7.0 -ce tdriois16(adr) tdfiois16(adr) tha(iord) thce(iord) td(iord) th(iord) tsua(iord) tsuce(iord) tw(iord) an -iord -iois16 dout dout 22 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.3.13 true ide mode i/o output (write) timing specification note: the maximum load on -iois16 is 1 lsttl with 50pf total load. all ac specifications are guaranteed by design. figure 2-8: true ide mode i/o write timing diagram table 2-10: t rue ide m ode i/o w rite t iming item symbol ieee symbol min 1 1. all times are in nanoseconds. max 1 data setup before iowr tsu(iowr) tdviwh 20 data hold following iowr th(iowr) tlwhdx 10 iowr width time tw(iowr) tlwliwh 70 address setup before iowr tsua(iowr) taviwl 25 address hold following iowr tha(iowr) tlwhax 10 ce setup before iowr tsuce(iowr) teliwl 10 ce hold following iowr thce(iowr) tlwheh 5 iois16 delay falling from address tdfiois16(adr) tavisl 20 iois16 delay rising from address tdriois16(adr) tavish 20 t2-10.2 375 375 ill2-8.0 -ce tdriois16(adr) tdfiois16(adr) tha(iowr) thce(iowr) th(iowr) tsu(iowr) din valid tsua(iowr) tsuce(iowr) tw(iowr) an -iord -iois16 din data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 23 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.4 card configuration the compactflash cards are identified by appropriate information in the card information structure (cis). the fol- lowing configuration registers are used to coordinate the i/o spaces and the interrupt level of cards that are located in the system. in addition, these registers provide a method for accessing status information about the compact- flash card that may be used to arbitrate between multiple interrupt sources on the same interrupt level or to replace status information that appears on dedicated pins in memory cards that have alternate use in i/o cards. note: the location of the card configuration registers should always be read from the cis locations 0000h to 0198h. no writes should be per- formed to the compactflash card attribute memory except to the card configuration register addresses. all other attribute memor y loca- tions are reserved. table 2-11: r egisters and m emory s pace d ecoding -ce2 -ce1 -reg -oe -we a 10 a 9 a 8 -a 4 a 3 a 2 a 1 a 0 selected space 1 1 x x x xxxxxxxxstandby x 0 0 0 1 0 1 xx x x x 0 configuration registers read 1 0 1 0 1 x x xx x x x x common memory read (8 bit d 7 -d 0 ) 0 1 1 0 1 x x xx x x x x common memory read (8 bit d 15 -d 8 ) 0 0 1 0 1 x x xx x x x 0 common memory read (16 bit d 15 -d 0 ) x 0 0 1 0 0 1 xx x x x 0 configuration registers write 1 0 1 1 0 x x xx x x x x common memory write (8 bit d 7 -d 0 ) 0 1 1 1 0 x x xx x x x x common memory write (8 bit d 15 -d 8 ) 0 0 1 1 0 x x xx x x x 0 common memory write (16 bit d 15 -d 0 ) x 0 0 0 1 0 0 xx x x x 0 card information structure read 1 0 0 1 0 0 0 xx x x x 0 invalid access (cis write) 1 0 0 0 1 x x xx x x x 1 invalid access (odd attribute read) 1 0 0 1 0 x x xx x x x 1 invalid access (odd attribute write) 0 1 0 0 1 x x xx x x x x invalid access (odd attribute read) 0 1 0 1 0 x x xx x x x x invalid access (odd attribute write) t2-11.0 375 table 2-12: c onfiguration r egisters d ecoding -ce2 -ce1 -reg -oe -we a 10 a 9 a 8 -a 4 a 3 a 2 a 1 a 0 selected register x 0 0 0 1 0 1 00 0 0 0 0 configuration option reg read x 0 0 1 0 0 1 00 0 0 0 0 configuration option reg write x 0 0 0 1 0 1 00 0 0 1 0 card status register read x 0 0 1 0 0 1 00 0 0 1 0 card status register write x 0 0 0 1 0 1 00 0 1 0 0 pin replacement register read x 0 0 1 0 0 1 00 0 1 0 0 pin replacement register write x 0 0 0 1 0 1 00 0 1 1 0 socket and copy register read x 0 0 1 0 0 1 00 0 1 1 0 socket and copy register write t2-12.0 375 24 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.4.1 attribute memory function attribute memory is a space where compactflash card identification and configuration information are stored, and is limited to 8-bit wide accesses only at even addresses. the card configuration registers are also located here. for the attribute memory read function, signals -reg and -oe must be active and -we inactive during the cycle. as in the main memory read functions, the signals -ce1 and -ce2 control the even byte and odd byte address, but only the even byte data is valid during the attribute memory access. refer to table 2-13 below for signal states and bus validity for the attribute memory function. note: the -ce signal or both the -oe signal and the -we signal must be de-asserted between consecutive cycle operations. 2.4.2 configuration option register (address 200h in attribute memory) the configuration option register is used to configure the cards interface, address decoding and interrupt and to issue a soft reset to the compactflash card. sreset soft reset - setting this bit to one (1), waiting the minimum reset width time and returning to zero (0) places the compactflash card in the reset state. setting this bit to one (1) is equivalent to assertion of the +reset signal except that the sreset bit is not cleared. returning this bit to zero (0) leaves the compactflash card in the same un- configured reset state as following power-up and hardware reset. this bit is set to zero (0) by power-up and hardware reset. using the pcmcia soft reset is considered a hard reset by the ata commands. contrast with soft reset in the device control register. levlreq this bit is set to one (1) when level mode interrupt is selected, and zero (0) when pulse mode is selected. set to zero (0) by reset. conf5 conf0 configuration index. set to zero (0) by reset. it?s used to select operation mode of the compactflash card as shown below. note: conf5 and conf4 are reserved and must be written as (0). table 2-13: a ttribute m emory f unction function mode -reg -ce2 -ce1 a 10 a 9 a 0 -oe -we d 15 -d 8 d 7 -d 0 standby mode x v ih v ih x x x x x high z high z read byte access cis rom (8 bits) v il v ih v il v il v il v il v il v ih high z even byte write byte access cis (8 bits) (invalid) v il v ih v il v il v il v il v ih v il don?t care even byte read byte access configuration (8 bits) v il v ih v il v il v ih v il v il v ih high z even byte write byte access configuration (8 bits) v il v ih v il v il v ih v il v ih v il don?t care even byte read word access cis (16 bits) v il v il v il v il v il xv il v ih not valid even byte write word access cis (16 bits) (invalid) v il v il v il v il v il xv ih v il don?t care even byte read word access configuration (16 bits) v il v il v il v il v ih xv il v ih not valid even byte write word access configuration (16 bits) v il v il v il v il v ih xv ih v il don?t care even byte t2-13.0 375 operationd7d6d5d4d3d2d1d0 r/w sreset levlreq conf5 conf4 conf3 conf2 conf1 conf0 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 25 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.4.3 card configuration and status register (address 202h in attribute memory) the card configuration and status register contains information about the card?s condition. changed indicates that one or both of the pin replacement register crdy or cwprot bits are set to one (1). when the changed bit is set, pin 46 (-stschg) is held low if the sigchg bit is a one (1) and the compactflash card is configured for the i/o interface. sigchg this bit is set and reset by the host to enable and disable a state-change ?signal? from the status register, the changed bit control pin 46 the changed status signal. if no state change signal is desired, this bit should be set to zero (0) and pin 46 (-stschg) signal will be held high while the compactflash card is configured for i/o iois8 the host sets this bit to a one (1) if the compactflash card is to be configured in an 8-bit i/o mode. the compactflash card is always configured for both 8- and 16-bit i/o, so this bit is ignored. pwrdwn this bit indicates whether the host requests the compactflash card to be in the power saving or active mode. when the bit is one (1), the compactflash card enters a power down mode. when zero (0), the host is requesting the compactflash card to enter the active mode. the pcmcia rdy/-bsy value becomes busy when this bit is changed. rdy/-bsy will not become ready until the power state requested has been entered. the compactflash card automatically powers down when it is idle and powers back up when it receives a command. int this bit represents the internal state of the interrupt request. this value is available whether or not i/o interface has been configured. this signal remains true until the condition which caused the interrupt request has been serviced. if interrupts are disabled by the -ien bit in the device control register, this bit is a zero (0). table 2-14: c ard c onfigurations conf5 conf4 conf3 conf2 conf1 conf0 disk card mode 000000memory mapped 000001i/o mapped, any 16 byte system decoded boundary 000010i/o mapped, 1f0h-1f7h/3f6h-3f7h 000011i/o mapped, 170h-177h/376h-377h t2-14.0 375 c ard c onfiguration and s tatus r egister o rganization operationd7d6d5d4d3d2d1d0 read changed sigchg iois8 0 0 pwrdwn int 0 write 0 sigchg iois8 0 0 pwrdwn 0 0 26 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.4.4 pin replacement register (address 204h in attribute memory) crdy/-bsy this bit is set to one (1) when the bit rrdy/-bsy changes state. this bit can also be written by the host. cwprot this bit is set to one (1) when the rwprot changes state. this bit may also be written by the host. rdy/-bsy this bit is used to determine the internal state of the rdy/-bsy signal. this bit may be used to determine the state of the ready/-busy as this pin has been reallocated for use as interrupt request on an i/o card. when written, this bit acts as a mask for writing the corresponding bit crdy/-bsy. mrdy/-bsy this bit acts as a mask for writing the corresponding bit crdy/-bsy. x this bit is ignored by the compactflash card. 2.4.5 socket and copy register (address 206h in attribute memory) this register contains additional configuration information. this register is always written by the system before writ- ing the card?s configuration index register. reserved this bit is reserved for future standardization. this bit must be set to zero (0) by the software when the register is written. drive # this bit indicates the drive number of the card for twin card configuration. twin card configuration is currently not supported. x the socket number is ignored by the compactflash card. operationd7d6d5d4d3d2d1d0 read 0 0 crdy/-bsy cwprot 1 1 rdy/-bsy 0 write 0 0 crdy/-bsy cwprot 0 0 mrdy/-bsy x table 2-15: p in r eplacement c hanged b it /m ask b it v alues initial value of (c) status written by host final ?c? bit comments ?c? bit ?m? bit 0 x 0 0 unchanged 1 x 0 1 unchanged x 0 1 0 cleared by host x 1 1 1 set by host t2-15.0 375 s ocket and c opy r egister o rganization : operationd7d6d5d4d3d2d1d0 read 0 0 crdy/-bsy cwprot 1 1 rdy/-bsy 0 write 0 0 crdy/-bsy cwprot 0 0 mrdy/-bsy x data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 27 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.5 i/o transfer function 2.5.1 i/o function the i/o transfer to or from the compactflash card can be either 8 or 16 bits. when a 16-bit accessible port is addressed, the signal -iois16 is asserted by the compactflash card. otherwise, the -iois16 signal is de-asserted. when a 16 bit transfer is attempted, and the -iois16 signal is not asserted by the compactflash card, the system must generate a pair of 8-bit references to access the word?s even byte and odd byte. the compactflash card permits both 8 and 16 bit accesses to all of its i/o addresses, so -iois16 is asserted for all addresses to which the compactflash card responds. table 2-16: i/o f unction function code -reg -ce2 -ce1 a 0 -iord -iowr d 15 -d 8 d 7 -d 0 standby mode x v ih v ih xxxhigh z high z byte input access (8 bits) v il v il v ih v ih v il v il v il v ih v il v il v ih v ih high z high z even byte odd byte byte output access (8 bits) v il v il v ih v ih v il v il v il v ih v ih v ih v il v il don?t care don?t care even byte odd byte word input access (16 bits) v il v il v il v il v il v ih odd byte even byte word output access (16 bits) v il v il v il v il v ih v il odd byte even byte i/o read inhibit v ih x x x v il v ih don?t care don?t care i/o write inhibit v ih x x x v ih v il high z high z high byte input only (8 bits) v il v il v ih x v il v ih odd byte high z high byte output only (8 bits) v il v il v ih x v ih v il odd byte don?t care t2-16.0 375 28 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.6 common memory transfer function 2.6.1 common memory function the common memory transfer to or from the compactflash card can be either 8 or 16 bits. the compactflash card permits both 8 and 16 bit accesses to all of its common memory addresses. table 2-17: c ommon m emory f unction function code -reg -ce2 -ce1 a 0 -oe -we d 15 -d 8 d 7 -d 0 standby mode x v ih v ih x x x high z high z byte read access (8 bits) v ih v ih v ih v ih v il v il v il v ih v il v il v ih v ih high z high z even byte odd byte byte-write access (8 bits) v ih v ih v ih v ih v il v il v il v ih v ih v ih v il v il don?t care don?t care even byte odd byte word read access (16 bits) v ih v il v il x v il v ih odd byte even byte word-write access (16 bits) v ih v il v il x v ih v il odd byte even byte odd byte read only (8 bits) v ih v il v ih x v il v ih odd byte high z odd byte-write only (8 bits) v ih v il v ih x v ih v il odd byte don?t care t2-17.0 375 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 29 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 2.7 true ide mode i/o transfer function 2.7.1 true ide mode i/o function the compactflash card can be configured in a true ide mode of operation. the compactflash card is configured in this mode only when the -oe input signal is grounded by the host during the power off to power on cycle. in this true ide mode the pcmcia protocol and configuration are disabled and only i/o operations to the task file and data register are allowed. in this mode no memory or attribute registers are accessible to the host. compact- flash cards permit 8 bit data accesses if the user issues a set feature command to put the device in 8 bit mode. note: removing and reinserting the compactflash card while the host computer?s power is on will reconfigure the compactflash to pc card ata mode from the original true ide mode. to configure the compactflash card in true ide mode, the 50-pin socket must be power cycled with the compactflash card inserted and -oe (output enable) asserted. table 2-18 defines the function of the operations for the true ide mode. table 2-18: t rue ide m ode i/o f unction function code -ce2 -ce1 a 0 -a 2 -iord -iowr d 15 -d 8 d 7 -d 0 invalid mode v il v il x x x high z high z standby mode v ih v ih x x x high z high z task file write v ih v il 1-7h v ih v il don?t care data in task file read v ih v il 1-7h v il v ih high z data out data register write v ih v il 0 v ih v il odd byte in even byte in data register read v ih v il 0 v il v ih odd byte out even byte out control register write v il v ih 6h v ih v il don?t care control in alt status read v il v ih 6h v il v ih high z status out drive address v il v ih 7h v il v ih high z data out t2-18.0 375 30 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.0 software interface 3.1 cf-ata drive register set definition and protocol the compactflash card can be configured as a high performance i/o device through: 1. standard pc-at disk i/o address spaces 1f0h-1f7h, 3f6h-3f7h (primary); 170h-177h, 376h-377h (secondary) with irq 14 (or other available irq). 2. any system decoded 16 byte i/o block using any available irq. 3. memory space. the communication to or from the compactflash card is done using the task file registers which provide all the necessary registers for control and status information. the pcmcia interface connects peripherals to the host using four register mapping methods. the following is a detailed description of these methods: 3.1.1 i/o primary and secondary address configurations note: address lines which are not indi cated are ignored by the compactflash card for accessing all the registers in this table. table 3-1: i/o c onfigurations standard configurations config index i/o or memory address description 0 memory 0h-fh, 400h-7ffh memory mapped 1 i/o xx0h-xxfh i/o mapped 16 contiguous registers 2 i/o 1f0h-1f7h, 3f6h-3f7h primary i/o mapped 3 i/o 170h-177h, 376h-377h secondary i/o mapped t3-1.0 375 table 3-2: p rimary and s econdary i/o d ecoding -reg a 9 -a 4 a 3 a 2 a 1 a 0 -iord=0 -iowr=0 note 0 1f(17) h 0 0 0 0 even rd data even wr data 1,2 1. register 0 is accessed with -ce1 low and -ce2 low (and a 0 = don?t care) as a word register on the combined odd data bus and even data bus (d 15 -d 0 ). this register may also be accessed by a pair of byte accesses to the offset 0 with -ce1 low and -ce2 high. note that the address space of this word register overlaps the address space of t he error and feature byte-wide registers which lie at offset 1. when accessed twice as byte register with -ce1 low, the first byte to be accessed is the even byte of the word and th e sec- ond byte accessed is the odd byte of the equivalent word access. 2. a byte access to register 0 with -ce1 high and -ce2 low accesses the error (read) or feature (write) register. 0 1f(17)h 0 0 0 1 error register features 1,2 0 1f(17)h 0 0 1 0 sector count sector count 0 1f(17)h 0 0 1 1 sector no. sector no. 0 1f(17)h 0 1 0 0 cylinder low cylinder low 0 1f(17)h 0 1 0 1 cylinder high cylinder high 0 1f(17)h 0 1 1 0 select card/head select card/head 0 1f(17)h 0 1 1 1 status command 0 3f(37)h 0 1 1 0 alt status device control 0 3f(37)h 0 1 1 1 drive address reserved t3-2.1 375 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 31 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.1.2 contiguous i/o mapped addressing when the system decodes a contiguous block of i/o registers to select the compactflash card, the registers are accessed in the block of i/o space decoded by the system as follows: note: address lines which are not indi cated are ignored by the compactflash card for accessing all the registers in this table. table 3-3: c ontiguous i/o d ecoding -reg a 3 a 2 a 1 a 0 offset -iord=0 -iowr=0 notes 0 0000 0 even rd data even wr data 1 1. register 0 is accessed with -ce1 low and -ce2 low (and a 0 = don?t care) as a word register on the combined odd data bus and even data bus (d15-d0). this register may also be accessed by a pai r of byte accesses to the offset 0 with -ce1 low and -ce2 hi gh. note that the address space of this word register overlaps t he address space of the error and f eature byte-wide registers that lie at offset 1. when accessed twice as byte register with -ce1 low, the first byte to be accessed is the even byte of the word and th e sec- ond byte accessed is the odd byte of the equivalent word access. a byte access to register 0 with -ce1 high and -ce2 low access es the error (read) or feature (write) register. 0 0001 1 error features 2 2. registers at offset 8, 9, and d are non-overlapping duplicates of the registers at offset 0 and 1. register 8 is equivalent to register 0, while register 9 access es the odd byte. therefore, if the registers are byte accessed i n the order 9 then 8 the data will be transferred odd byte then even byte. repeated byte accesses to register 8 or 0 will access consecutive (even then odd) bytes from the data buffer. repeated word accesses to register 8, 9, or 0 will access consecutive words from the data buff er. repeated byte accesses to register 9 are no t sup- ported. however, repeated alternating byte accesses to regist ers 8 then 9 will access consecutive (even then odd) bytes from th e data buffer. byte accesses to register 9 access only the odd byte of the data. 0 0010 2 sector count sector count 0 0011 3 sector no. sector no. 0 0100 4 cylinder low cylinder low 0 0101 5 cylinder high cylinder high 0 0110 6 select card/head select card/head 0 0111 7 status command 0 1000 8 dup. even rd data dup. even wr data 2 0 1001 9 dup. odd rd data dup. odd wr data 2 0 1101 d dup. error dup. features 2 0 1110 e alt status device ctl 0 1111 f drive address reserved t3-3.0 375 32 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.1.3 memory mapped addressing when the compactflash card registers are accessed via memory references, the registers appear in the common memory space window: 0-2 kbyte as follows: table 3-4: m emory m apped d ecoding -reg a 10 a 9 -a 4 a 3 a 2 a 1 a 0 offset -oe=0 -we=0 notes 1 0 x 0 0 0 0 0 even rd data even wr data 1,2 1. register 0 is accessed with -ce1 low and -ce2 low as a word register on the combined odd data bus and even data bus (d15-d0). this register may also be accessed by a pair of byte accesses to the offset 0 with -ce1 low and -ce2 high. note that the addres s space of this word register overlaps the address space of the error and feature byte-wide registers that lie at offset 1. when accessed twice as byte register with -ce1 low, the first byte to be accessed is the even byte of the word and the second byte accessed is the odd byte of the equivalent word access. a byte access to address 0 with -ce1 high and -ce2 low accesses the error (read) or feature (write) register. 2. registers at offset 8, 9 and d are non-overlapping duplicates of the registers at offset 0 and 1. register 8 is equivalent to register 0, while register 9 access es the odd byte. therefore, if the registers are byte accessed i n the order 9 then 8 the data will be transferred odd byte then even byte. repeated byte accesses to register 8 or 0 will access consecutive (even then odd) bytes from the data buffer. repeated word accesses to register 8, 9 or 0 will access consecutive words fr om the data buffer. repeated byte accesses to register 9 are not sup- ported. however, repeated alternating byte accesses to regist ers 8 then 9 will access consecutive (even then odd) bytes from th e data buffer. byte accesses to register 9 access only the odd byte of the data. 1 0 x 0 0 0 1 1 error features 1,2 1 0 x 0 0 1 0 2 sector count sector count 1 0 x 0 0 1 1 3 sector no. sector no. 1 0 x 0 1 0 0 4 cylinder low cylinder low 1 0 x 0 1 0 1 5 cylinder high cylinder high 1 0 x 0 1 1 0 6 select card/head select card/head 1 0 x 0 1 1 1 7 status command 1 0 x 1 0 0 0 8 dup. even rd data dup. even wr data 2 1 0 x 1 0 0 1 9 dup. odd rd data dup. odd wr data 2 1 0 x 1 1 0 1 d dup. error dup. features 2 1 0 x 1 1 1 0 e alt status device ctl 1 0 x 1 1 1 1 f drive address reserved 1 1 x x x x 0 8 even rd data even wr data 3 3. accesses to even addresses between 400h and 7ffh access r egister 8. accesses to odd addresses between 400h and 7ffh access register 9. this 1 kbyte memory window to the data register is provided so that hosts can perform memory to memory block moves to the data register when the register lies in memory space. some hosts, such as the x86 processors, must increment both t he source and destination addresses when executing the memory to memory block move instruction. some pcmcia socket adapters also have auto incrementing address logic embedded within them. this address window allows these hosts and adapters to function efficiently. note that this entire window accesses the data register fifo and does not allow random access to the data buffer within the com - pactflash card. a word access to address at offset 8 will provide even data on t he low-order byte of the data bus, along with odd data at offse t 9 on the high-order byte of the data bus. 1 1 x x x x 1 9 odd rd data odd wr data 3 t3-4.0 375 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 33 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.1.4 true ide mode addressing when the compactflash card is configured in the true ide mode, the i/o decoding is as follows: 3.1.5 cf-ata registers the following section describes the hardware registers used by the host software to issue commands to the com- pactflash device. these registers are often collectively referred to as the ?task file.? note: in accordance with the pcmcia specification: each of the registers below which is located at an odd offset address may be accessed at its normal address and also the corresponding even address (normal address -1) using data bus lines (d15-d8) when -ce1 is high and -ce2 is low unless -iois16 is high (not asserted) and an i/o cycle is being performed. 3.1.5.1 data register (address - 1f0h[170h];offset 0,8,9) the data register is a 16 bit register, and it is used to transfer data blocks between the compactflash card data buffer and the host. this register overlaps the error register. the table below describes the combinations of data register access and is provided to assist in understanding the overlapped data register and error/feature register rather than to attempt to define general pcmcia word and byte access modes and operations. see the pcmcia pc card standard release 2.0 for definitions of the card accessing modes for i/o and memory cycles. note: because of the overlapped registers, access to the 1f1h, 171h or offset 1 are not defined for word (-ce2=0 and -ce1=0) operations. these accesses are treated as accesses to the word data register. the dupli- cated registers at offsets 8, 9 and dh have no restrictions on the operations that can be performed by the socket. table 3-5: t rue ide m ode i/o d ecoding -ce2 -ce1 a 2 a 1 a 0 -iord=0 -iowr=0 1 0 0 0 0 rd data wr data 1 0 0 0 1 error register features 1 0 0 1 0 sector count sector count 1 0 0 1 1 sector no. sector no. 1 0 1 0 0 cylinder low cylinder low 1 0 1 0 1 cylinder high cylinder high 1 0 1 1 0 select card/head select card/head 1 0 1 1 1 status command 0 1 1 1 0 alt status device control 0 1 1 1 1 drive address reserved t3-5.0 375 data register ce2- ce1- a 0 offset data bus word data register 0 0 x 0,8,9 d 15 -d 0 even data register 1 0 0 0,8 d 7 -d 0 odd data register 1 0 1 9 d 7 -d 0 odd data register 0 1 x 8,9 d 15 -d 8 error / feature register 1 0 1 1, dh d 7 -d 0 error / feature register 0 1 x 1 d 15 -d 8 error / feature register 0 0 x dh d 15 -d 8 34 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.1.5.2 error register (address - 1f1h[171h]; offset 1, 0dh read only) this register contains additional information about the source of an error when an error is indicated in bit 0 of the status register. the bits are defined as follows: this register is also accessed on data bits d15-d8 during a write operation to offset 0 with -ce2 low and -ce1 high. bit 7 (bbk) this bit is set when a bad block is detected. bit 6 (unc) this bit is set when an uncorrectable error is encountered. bit 5 this bit is 0. bit 4 (idnf) the requested sector id is in error or cannot be found. bit 3 this bit is 0. bit 2 (abort) this bit is set if the command has been aborted because of a compactflash card status condition: (not ready, write fault, etc.) or when an invalid command has been issued. bit 1 this bit is 0. bit 0 (amnf) this bit is set in case of a general error. 3.1.5.3 feature register (address - 1f1h[171h]; offset 1, 0dh write only) this register provides information regarding features of the compactflash card that the host can utilize. this register is also accessed on data bits d15-d8 during a write operation to offset 0 with -ce2 low and -ce1 high. 3.1.5.4 sector count register (address - 1f2h[172h]; offset 2) this register contains the numbers of sectors of data requested to be transferred on a read or write operation between the host and the compactflash card. if the value in this register is zero, a count of 256 sectors is speci- fied. if the command was successful, this register is zero at command completion. if not successfully completed, the register contains the number of sectors that need to be transferred in order to complete the request. 3.1.5.5 sector number (lba 7-0) register (address - 1f3h[173h]; offset 3) this register contains the starting sector number or bits 7-0 of the logical block address (lba) for any compactflash card data access for the subsequent command. 3.1.5.6 cylinder low (lba 15-8) register (address - 1f4h[174h]; offset 4) this register contains the low order 8 bits of the starting cylinder address or bits 15-8 of then logical block address. 3.1.5.7 cylinder high (lba 23-16) register (address - 1f5h[175h]; offset 5) this register contains the high order bits of the starting cylinder address or bits 23-16 of the logical block address. this register is also accessed on data bits d15-d8 during a write operation to offset 0 with -ce2 low and -ce1 high. d7 d6 d5 d4 d3 d2 d1 d0 bbk unc 0 idnf 0 abrt 0 amnf data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 35 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.1.5.8 drive/head (lba 27-24) register (address 1f6h[176h]; offset 6) the drive/head register is used to select the drive and head. it is also used to select lba addressing instead of cylinder/head/sector addressing. the bits are defined as follows: bit 7 this bit is set to 1. bit 6 lba is a flag to select either cylinder/head/sector (chs) or logical block address mode (lba). when lba=0, cylinder/head/sector mode is selected. when lba=1, logical block address is selected. in logical block mode, the logical block address is interpreted as follows: lba7-lba0: sector number register d7-d0. lba15-lba8: cylinder low register d7-d0. lba23-lba16: cylinder high register d7-d0. lba27-lba24: drive/head register bits hs3-hs0. bit 5 this bit is set to 1. bit 4 (drv) drv is the drive number. when drv=0, drive (card) 0 is selected. when drv=1, drive (card) 1 is selected. the compactflash card is set to be card 0 or 1 using the copy field (drive #) of the pcmcia socket & copy configuration register. bit 3 (hs3) when operating in the cylinder, head, sector mode, this is bit 3 of the head number. it is bit 27 in the logical block address mode. bit 2 (hs2) when operating in the cylinder, head, sector mode, this is bit 2 of the head number. it is bit 26 in the logical block address mode. bit 1 (hs1) when operating in the cylinder, head, sector mode, this is bit 1 of the head number. it is bit 25 in the logical block address mode. bit 0 (hs0) when operating in the cylinder, head, sector mode, this is bit 0 of the head number. it is bit 24 in the logical block address mode. d7 d6 d5 d4 d3 d2 d1 d0 1 lba 1 drv hs3 hs2 hs1 hs0 36 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.1.5.9 status & alternate status registers (address 1f7h[177h]&3f6h[376h]; offsets 7 & e) these registers return the compactflash card status when read by the host. reading the status register does clear a pending interrupt while reading the auxiliary status register does not. the meaning of the status bits are described as follows: bit 7 (busy) the busy bit is set when the compactflash card has access to the command buffer and registers and the host is locked out from accessing the command register and buffer. no other bits in this register are valid when this bit is set to a 1. bit 6 (rdy) rdy indicates whether the device is capable of performing compactflash card operations. this bit is cleared at power up and remains cleared until the compactflash card is ready to accept a command. bit 5 (dwf) this bit, if set, indicates a write fault has occurred. bit 4 (dsc) this bit is set when the compactflash card is ready. bit 3 (drq) the data request is set when the compactflash card requires that information be transferred either to or from the host through the data register. bit 2 (corr) this bit is set when a correctable data error has been encountered and the data has been corrected. this condition does not terminate a multi-sector read operation. bit 1 (idx) this bit is always set to 0. bit 0 (err) this bit is set when the previous command has ended in some type of error. the bits in the error register contain additional information describing the error. it is recommended that media access commands such as read sectors and write sectors) that end with an error condition should have the address of the first sector in error in the command block registers. 3.1.5.10 device control register (address - 3f6h[376h]; offset e) this register is used to control the compactflash card interrupt request and to issue an ata soft reset to the card. this register can be written even if the device is busy. the bits are defined as follows: bit 7 this bit is an x (don?t care). bit 6 this bit is an x (don?t care). bit 5 this bit is an x (don?t care). bit 4 this bit is an x (don?t care). bit 3 this bit is ignored by the compactflash card. bit 2 (sw rst) this bit is set to 1 in order to force the compactflash card to perform an at disk controller soft reset operation. this does not change the pcmcia card configuration registers (4.3.2 to 4.3.5) as a hardware reset does. the card remains in reset until this bit is reset to ?0.? bit1(-ien) the interrupt enable bit enables interrupts when the bit is 0. when the bit is 1, interrupts from the compactflash card are disabled. this bit also controls the int bit in the configuration and status register. this bit is set to 0 at power on and reset. bit0 this bit is ignored by the compactflash card. d7 d6 d5 d4 d3 d2 d1 d0 busy rdy dwf dsc drq corr 0 err d7 d6 d5 d4 d3 d2 d1 d0 xxxx1sw rst-ien0 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 37 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.1.5.11 card (drive) address register (address3f7h[377h]; offset f) this register is provided for compatibility with the at disk drive interface. it is recommended that this register not be mapped into the host?s i/o space because of potential conflicts on bit 7. the bits are defined as follows: bit 7 this bit is don?t care. implementation note: conflicts may occur on the host data bus when this bit is provided by a floppy disk controller operating at the same addresses as the compactflash card. following are some possible solutions to this problem for the pcmcia implementation: 1. locate the compactflash card at a non-conflicting address, i.e. secondary address (377) or in an independently decoded address space when a floppy disk controller is located at the primary addresses. 2. do not install a floppy and a compactflash card in the system at the same time. 3. implement a socket adapter which can be programmed to (conditionally) tri-state d7 of i/0 address 3f7h/377h when a compactflash card is installed and conversely to tri- state d6- d0 of i/o address 3f7h/377h when a floppy controller is installed. 4. do not use the compactflash card?s drive address register. this may be accom- plished by either a) if possible, program the host adapter to enable only i/o addresses 1f0h-1f7h, 3f6h (or 170h-177h, 176h) to the compactflash card or b) if provided use an additional primary/secondary configuration in the compactflash card which does not respond to accesses to i/o locations 3f7h and 377h. with either of these implementa- tions, the host software must not attempt to use information in the drive address register. bit 6 (-wtg) this bit is 0 when a write operation is in progress, otherwise, it is 1. bit 5 (-hs3) this bit is the negation of bit 3 in the drive/head register. bit 4 (-hs2) this bit is the negation of bit 2 in the drive/head register. bit 3 (-hs1) this bit is the negation of bit 1 in the drive/head register. bit 2 (-hs0) this bit is the negation of bit 0 in the drive/head register. bit 1 (-nds1) this bit is 0 when drive 1 is active and selected. bit 0 (-nds0) this bit is 0 when the drive 0 is active and selected. 3.2 cf-ata command description this section defines the software requirements and the format of the commands the host sends to the compact- flash cards. commands are issued to the compactflash card by loading the required registers in the command block with the supplied parameters, and then writing the command code to the command register. the manner in which a command is accepted varies. there are three classes (see table 3-6) of command acceptance, all depen- dent on the host not issuing commands unless the compactflash card is not busy (bsy=0). 3.2.1 cf-ata command set table 3-6 summarizes the cf-ata command set with the paragraphs that follow describing the individual com- mands and the task file for each. d7 d6 d5 d4 d3 d2 d1 d0 x -wtg -hs3 -hs2 -hs1 -hs0 -nds1 -nds0 38 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 table 3-6: cf-ata c ommand s et class command code fr 1 sc 2 sn 3 cy 4 dh 5 lba 6 1 check power mode e5h or 98h - - - - d - 1 execute drive diagnostic 90h - - - - d - 1 erase sector(s) c0h - y 7 yyy 8 y 2 format track 50h - y - y y y 1 identify drive ech - - - - d - 1 idle e3h or 97h - y - - d - 1 idle immediate e1h or 95h - - - - d - 1 initialize drive parameters 91h - y - - y - 1 read buffer e4h - - - - d - 1 read long sector 22h or 23h - - y y y y 1 read multiple c4h - y y y y y 1 read sector(s) 20h or 21h - y y y y y 1 read verify sector(s) 40h or 41h - y y y y y 1 recalibrate 1xh - - - - d - 1 request sense 03h - - - - d - 1seek 7xh - - yyy y 1 set features efh y - - - d - 1 set multiple mode c6h - y - - d - 1 set sleep mode e6h or 99h - - - - d - 1 stand by e2h or 96h - - - - d - 1 stand by immediate e0h or 94h - - - - d - 1 translate sector 87h - y y y y y 1 wear level f5h - - - - y - 2 write buffer e8h - - - - d - 2 write long sector 32h or 33h - - y y y y 3 write multiple c5h - y y y y y 3 write multiple w/o erase cdh - y y y y y 2 write sector(s) 30h or 31h - y y y y y 2 write sector(s) w/o erase 38h - y y y y y 3 write verify 3ch - y y y y y t3-6.0 375 1. fr = features register 2. sc = sector count register 3. sn = sector number register 4. cy = cylinder registers 5. dh = card/drive/head register 6. lba = logical block address mode supported (see command descriptions for use). 7. y = the register contains a valid parameter for this command. 8. for the drive/head register: y means both the compactflash card and head parameters are used; d - only the compactflash card parameter is valid and not the head parameter. data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 39 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.1 check power mode - 98h or e5h this command checks the power mode. because sst compactflash card can recover from sleep in 200ms, idle mode is never enabled. compactflash card sets bsy, sets the sector count register to 00h, clears bsy and generates an interrupt. 3.2.1.2 execute drive diagnostic - 90h this command performs the internal diagnostic tests implemented by the compactflash card. if in pcmcia configuration this command runs only on the compactflash card which is addressed by the drive/head register when the diagnostic command is issued. this is because pcmcia card interface does not allows for direct inter-drive communication (such as the ata pdiag and dasp signals). if in true ide mode the drive bit is ignored and the diagnostic command is executed by both the master and the slave with the master responding with status for both devices. the diagnostic codes shown in table 3-7 are returned in the error register at the end of the command. bit ->76543210 command (7) 97h or e5h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x bit ->76543210 command (7) 90h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x table 3-7: d iagnostic c odes code error type 01h no error detected 02h formatter device error 03h sector buffer error 04h ecc circuitry error 05h controlling microprocessor error 8xh slave error in true ide mode t3-7.0 375 40 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.3 erase sector(s) - c0h this command is used to pre-erase and condition data sectors in advance of a write without erase or write multiple without erase command. there is no data transfer associated with this command but a write fault error status can occur. 3.2.1.4 format track - 50h this command writes the desired head and cylinder of the selected drive with a vendor unique data pattern (typically ffh or 00h). to remain host backward compatible, the compactflash card expects a sector buffer of data from the host to follow the command with the same protocol as the write sector(s) command although the information in the buffer is not used by the compactflash card. if lba=1 then the number of sectors to format is taken from the sec cnt register (0=256). the use of this command is not recommended. 3.2.1.5 identify drive - ech the identify drive command enables the host to receive parameter information from the compactflash card. this command has the same protocol as the read sector(s) command. the parameter words in the buffer have the arrangement and meanings defined in table 3-8. all reserved bits or words are zero. table 3-8 is the definition for each field in the identify drive information. bit ->76543210 command (7) c0h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) sector count feature (1) x bit ->76543210 command (7) 50h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) x (lba 7-0) sec cnt (2) count (lba mode only) feature (1) x bit ->76543210 command (7) ech c/d/h (6) xxxdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 41 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 table 3-8: i dentify d rive i nformation word address default value total bytes data field type information 0 848ah 2 general configuration bit-significant information 1 xxxxh 2 default number of cylinders 2 0000h 2 reserved 3 00xxh 2 default number of heads 4 xxxxh 2 number of unformatted bytes per track 5 xxxxh 2 number of unformatted bytes per sector 6 xxxxh 2 default number of sectors per track 7-8 xxxxh 4 number of sectors per card (word 7 = msw, word 8 = lsw) 9 0000h 2 vendor unique 10-19 aaaa 20 serial number in ascii. big endian byte order in word 20 0002h 2 buffer type 21 xxxxh 2 buffer size in 512 byte increments 22 0004h 2 # of ecc bytes passed on read/write long commands 23-26 aaaa 8 firmware revision in ascii. big endian byte order in word 27-46 aaaa 40 model number in ascii. big endian byte order in word 47 000xh 2 maximum number of sectors on read/write multiple command 48 0000h 2 reserved 49 0200h 2 capabilities 50 0000h 2 reserved 51 0x00h 2 pio data transfer cycle timing mode 52 0000h 2 reserved 53 000xh 2 translation parameters are valid 54 xxxxh 2 current numbers of cylinders 55 xxxxh 2 current numbers of heads 56 xxxxh 2 current sectors per track 57-58 xxxxh 4 current capacity in sectors (lbas) (word 57 = lsw, word 58 = msw) 59 010xh 2 multiple sector setting 60-61 xxxxh 4 total number of sectors addressable in lba mode 62-63 0000h 4 reserved (dma data transfer is not supported in compactflash) 64 00xxh 2 advanced pio transfer mode supported 65-66 0000h 4 reserved 67 xxxxh 2 minimum pio transfer cycle time without flow control 68 xxxxh 2 minimum pio transfer cycle time with iordy flow control 69-127 0000h 138 reserved 128-159 0000h 64 vendor unique bytes 160-255 0000h 192 reserved t3-8.2 375 42 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.5.1 general configuration this field informs the host that this is a non-magnetic, hard sectored, removable storage device with a transfer rate greater than 10 mbyte/sec and is not mfm encoded. 3.2.1.5.2 default number of cylinders this field contains the number of translated cylinders in the default translation mode. this value will be the same as the number of cylinders. 3.2.1.5.3 default number of heads this field contains the number of translated heads in the default translation mode. 3.2.1.5.4 number of unformatted bytes per track this field contains the number of unformatted bytes per translated track in the default translation mode. 3.2.1.5.5 number of unformatted bytes per sector this field contains the number of unformatted bytes per sector in the default translation mode. 3.2.1.5.6 default number of sectors per track this field contains the number of sectors per track in the default translation mode. 3.2.1.5.7 number of sectors per card this field contains the number of sectors per compactflash card. this double word value is also the first invalid address in lba translation mode. 3.2.1.5.8 memory card serial number the contents of this field are right justified and padded with spaces (20h). 3.2.1.5.9 buffer type this field defines the buffer capability: 0002h: a dual ported multi-sector buffer capable of simultaneous data transfers to or from the host and the compactflash card. 3.2.1.5.10 buffer size this field defines the buffer capacity in 512 byte increments. sst?s compactflash card has up to 8 sector data buffer for host interface. 3.2.1.5.11 ecc count this field defines the number of ecc bytes used on each sector in the read and write long commands. 3.2.1.5.12 firmware revision this field contains the revision of the firmware for this product. 3.2.1.5.13 model number this field contains the model number for this product and is left justified and padded with spaces (20h). 3.2.1.5.14 read/write multiple sector count this field contains the maximum number of sectors that can be read or written per interrupt using the read multiple or write multiple commands. sst?s compactflash card can support up to 2 sectors for read multiple or write multiple commands. data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 43 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.5.15 capabilities bit 13: standby timer set to 0, forces sleep mode when host is inactive. bit 11: iordy support set to 0, indicates that this device may support iordy operation. bit 9: lba support set to 1, sst?s compactflash supports lba mode addressing. bit 8: dma support this bit is set to 0. dma mode is not supported. 3.2.1.5.16 pio data transfer cycle timing mode this field defines the mode for pio data transfer. 3.2.1.5.17 translation parameters valid if bit 0 is 1, it indicates that words 54 to 58 are valid and reflect the current number of cylinders, heads and sectors. if bit 1 is 1, it indicates that words 64 to 70 are valid to support pio mode-4. 3.2.1.5.18 current number of cylinders, heads, sectors/track these fields contains the current number of user addressable cylinders, heads, and sectors/track in the current translation mode. 3.2.1.5.19 current capacity this field contains the product of the current cylinders times heads times sectors. 3.2.1.5.20 multiple sector setting this field contains a validity flag in the odd byte and the current number of sectors that can be transferred per interrupt for r/w multiple in the even byte. the odd byte is always 01h which indicates that the even byte is always valid. the even byte value depends on the value set by the set multiple command. the even byte of this word by default contains a 00h which indicates that r/w multiple commands are not valid. 3.2.1.5.21 advanced pio data transfer mode compactflash supports up to pio mode-4. 3.2.1.5.22 minimum pio transfer cycle time without flow control the compactflash minimum cycle time is 120 ns. 3.2.1.5.23 minimum pio transfer cycle time with iordy the compactflash minimum cycle time is 120 ns, e.g., pio mode-4. 3.2.1.5.24 total sectors addressable in lba mode this field contains the number of sectors addressable for the compactflash card in lba mode only. 44 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.6 idle - 97h or e3h this command causes the compactflash card to set bsy, enter the idle mode, clear bsy and generate an interrupt. if the sector count is non-zero, it is interpreted as a timer count with each count being 5 milliseconds and the automatic power down mode is enabled. if the sector count is zero, the automatic power down mode is also enabled, the timer count is set to 3, with each count being 5 ms. note that this time base (5 msec) is different from the ata specification. 3.2.1.7 idle immediate - 95h or e1h this command causes the compactflash card to set bsy, enter the idle mode, clear bsy and generate an interrupt. 3.2.1.8 initialize drive parameters - 91h this command enables the host to set the number of sectors per track and the number of heads per cylinder. only the sector count and the card/drive/head registers are used by this command. bit ->76543210 command (7) 97h or e3h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) timer count (5 msec increments) feature (1) x bit ->76543210 command (7) 95h or e1h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) timer count (5 msec increments) feature (1) x bit ->76543210 command (7) 91h c/d/h (6) x 0 x drive max head (no. of heads-1) cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) number of sectors feature (1) x data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 45 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.9 read buffer - e4h the read buffer command enables the host to read the current contents of the compactflash card?s sector buffer. this command has the same protocol as the read sector(s) command. 3.2.1.10 read multiple - c4h note: the current revision of the sst compactflash card can support up to a block count of 1 as indicated in the identify drive command information. the read multiple command performs similarly to the read sectors command. interrupts are not generated on every sector, but on the transfer of a block which contains the number of sectors defined by a set multiple command. command execution is identical to the read sectors operation except that the number of sectors defined by a set multiple command are transferred without intervening interrupts. drq qualification of the transfer is required only at the start of the data block, not on each sector. the block count of sectors to be transferred without intervening interrupts is programmed by the set multiple mode command, which must be executed prior to the read multiple command. when the read multiple command is issued, the sector count register contains the number of sectors (not the number of blocks or the block count) requested. if the number of requested sectors is not evenly divisible by the block count, as many full blocks as possible are transferred, followed by a final, partial block transfer. the partial block transfer is for n sectors, where n = remainder(sector count/block count) if the read multiple command is attempted before the set multiple mode command has been executed or when read multiple commands are disabled, the read multiple operation is rejected with an aborted command error. disk errors encountered during read multiple commands are posted at the beginning of the block or partial block transfer, but drq is still set and the data transfer will take place as it normally would, including transfer of corrupted data, if any. interrupts are generated when drq is set at the beginning of each block or partial block. the error reporting is the same as that on a read sector(s) command. this command reads from 1 to 256 sectors as specified in the sector count register. a sector count of 0 requests 256 sectors. the transfer begins at the sector specified in the sector number register. bit ->76543210 command (7) e4h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x bit ->76543210 command (7) c4h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) sector count feature (1) x 46 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 at command completion, the command block registers contain the cylinder, head and sector number of the last sector read. if an error occurs, the read terminates at the sector where the error occurred. the command block registers contain the cylinder, head and sector number of the sector where the error occurred. the flawed data is pending in the sector buffer. subsequent blocks or partial blocks are transferred only if the error was a correctable data error. all other errors cause the command to stop after transfer of the block which contained the error. 3.2.1.11 read long sector - 22h or 23h the read long command performs similarly to the read sector(s) command except that it returns 516 bytes of data instead of 512 bytes. during a read long command, the compactflash card does not check the ecc bytes to determine if there has been a data error. only single sector read long operations are supported. the transfer consists of 512 bytes of data transferred in word-mode followed by 4 bytes of ecc data transferred in byte-mode. this command has the same protocol as the read sector(s) command. use of this command is not recommended. 3.2.1.12 read sector(s) - 20h or 21h this command reads from 1 to 256 sectors as specified in the sector count register. a sector count of 0 requests 256 sectors. the transfer begins at the sector specified in the sector number register. when this command is issued and after each sector of data (except the last one) has been read by the host, the compactflash card sets bsy, puts the sector of data in the buffer, sets drq, clears bsy, and generates an interrupt. the host then reads the 512 bytes of data from the buffer. at command completion, the command block registers contain the cylinder, head and sector number of the last sector read. if an error occurs, the read terminates at the sector where the error occurred. the command block registers contain the cylinder, head, and sector number of the sector where the error occurred. the flawed data is pending in the sector buffer. bit ->76543210 command (7) 22h or 23h c/d/h (6) 1 lba 1 drive head (lba 27-24 cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) x feature (1) x bit ->76543210 command (7) 20h or 21h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8 ) sec num (3) sector number (lba 7-0) sec cnt (2) x feature (1) x data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 47 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.13 read verify sector(s) - 40h or 41h this command is identical to the read sectors command, except that drq is never set and no data is transferred to the host. when the command is accepted, the compactflash card sets bsy. when the requested sectors have been verified, the compactflash card clears bsy and generates an interrupt. upon command completion, the command block registers contain the cylinder, head, and sector number of the last sector verified. if an error occurs, the verify terminates at the sector where the error occurs. the command block registers contain the cylinder, head and sector number of the sector where the error occurred. the sector count register contains the number of sectors not yet verified. 3.2.1.14 recalibrate - 1xh this command is effectively a nop command to the compactflash card and is provided for compatibility purposes. 3.2.1.15 request sense - 03h this command requests extended error information for the previous command. table 3-9 defines the valid extended error codes for the compactflash card series product. the extended error code is returned to the host in the error register. bit ->76543210 command (7) 40h or 41h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) sector count feature (1) x bit ->76543210 command (7) 1xh c/d/h (6) 1lba1drive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x bit ->76543210 command (7) 03h c/d/h (6) 1x1drive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x 48 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.16 seek - 7xh this command is effectively a nop command to the compactflash card although it does perform a range check of cylinder and head or lba address and returns an error if the address is out of range. 3.2.1.17 set features - efh this command is used by the host to establish or select certain features. table 3-10 defines all features that are supported. table 3-9: e xtended e rror c odes extended error code description 00h no error detected 01h self test ok (no error) 09h miscellaneous error 20h invalid command 21h invalid address (requested head or sector invalid) 2fh address overflow (address too large) 35h, 36h supply or generated voltage out of tolerance 11h uncorrectable ecc error 18h corrected ecc error 05h, 30-34h, 37h, 3eh self test or diagnostic failed 10h, 14h id not found 3ah spare sectors exhausted 1fh data transfer error / aborted command 0ch, 38h, 3bh, 3ch, 3fh corrupted media format 03h write / erase failed t3-9.0 375 bit ->76543210 command (7) 7xh c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) x (lba 7-0) sec cnt (2) x feature (1) x bit ->76543210 command (7) efh c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) config feature (1) feature data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 49 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 features 01h and 81h are used to enable and clear 8-bit data transfer modes in true ide mode. if the 01h feature command is issued all data transfers will occur on the low order d7-d0 data bus and the iois16 signal will not be asserted for data register accesses. features 55h and bbh are the default features for the compactflash card; thus, the host does not have to issue this command with these features unless it is necessary for compatibility reasons. features 66h and cch can be used to enable and disable whether the power on reset (por) defaults will be set when a soft reset occurs. the default setting is to revert to the por defaults when a soft reset occurs. 3.2.1.18 set multiple mode - c6h this command enables the compactflash card to perform read and write multiple operations and establishes the block count for these commands. the sector count register is loaded with the number of sectors per block. upon receipt of the command, the compactflash card sets bsy to 1 and checks the sector count register. if the sector count register contains a valid value and the block count is supported, the value is loaded for all subsequent read multiple and write multiple commands and execution of those commands is enabled. if a block count is not supported, an aborted command error is posted, and read multiple and write multiple commands are disabled. if the sector count register contains 0 when the command is issued, read and write multiple commands are disabled. at power on, or after a hardware or (unless disabled by a set feature command) software reset, the default mode is read and write multiple disabled. table 3-10: f eatures s upported feature operation 01h enable 8-bit data transfers. 55h disable read look ahead. 66h disable power on reset (por) establishment of defaults at soft reset. 69h nop - accepted for backward compatibility. 81h disable 8-bit data transfer. 96h nop - accepted for backward compatibility. 97h accepted for backward compatibility. use of this feature is not recommended. 9ah nop- accepted for compatibility. bbh 4 bytes of data apply on read/write long commands. cch enable power on reset (por) establishment of defaults at soft reset. t3-10.0 375 bit ->76543210 command (7) c6h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) sector count feature (1) x 50 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.19 set sleep mode- 99h or e6h this command causes the compactflash card to set bsy, enter the sleep mode, clear bsy and generate an interrupt. recovery from sleep mode is accomplished by simply issuing another command (a reset is permitted but not required). sleep mode is also entered when internal timers expire so the host does not need to issue this command except when it wishes to enter sleep mode immediately. the default value for the timer is 15 milliseconds. 3.2.1.20 standby - 96h or e2h this command causes the compactflash card to set bsy, enter the sleep mode (which corresponds to the ata ?standby? mode), clear bsy and return the interrupt immediately. recovery from sleep mode is accomplished by simply issuing another command (a reset is not required). 3.2.1.21 standby immediate - 94h or e0h this command causes the compactflash card to set bsy, enter the sleep mode (which corresponds to the ata ?standby? mode), clear bsy and return the interrupt immediately. recovery from sleep mode is accomplished by simply issuing another command (a reset is not required). bit ->76543210 command (7) 99h or e6h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x bit ->76543210 command (7) 96h or e2h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x bit ->76543210 command (7) 94h or e0h c/d/h (6) xdrive x cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) x feature (1) x data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 51 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.22 translate sector - 87h this command allows the host a method of determining the exact number of times a user sector has been erased and programmed. the controller responds with a 512 byte buffer of information containing the desired cylinder, head and sector, including its logical address, and the hot count, if available, for that sector. table 3-11 represents the information in the buffer. please note that this command is unique to the compactflash card. 3.2.1.23 wear level - f5h this command is effectively a nop command and only implemented for backward compatibility. the sector count register will always be returned with an 00h indicating wear level is not needed. bit ->76543210 command (7) 87h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16 cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) x feature (1) x table 3-11: t ranslate s ector i nformation address information 00h-01h cylinder msb (00), cylinder lsb (01) 02h head 03h sector 04h-06h lba msb (04) - lsb (06) 07h-12h reserved 13h erased flag (ffh) = erased; 00h = not erased 14h - 17h reserved 18h-1ah hot count msb (18) - lsb (1a) 1 1. a value of 0 indicates hot count is not supported. 1bh-1ffh reserved t3-11.0 375 bit ->76543210 command (7) f5h c/d/h (6) xxxdrive flag cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) completion status feature (1) x 52 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.24 write buffer - e8h the write buffer command enables the host to overwrite contents of the compactflash card?s sector buffer with any data pattern desired. this command has the same protocol as the write sector(s) command and transfers 512 bytes. 3.2.1.25 write long sector - 32h or 33h this command is similar to the write sector(s) command except that it writes 516 bytes instead of 512 bytes. only single sector write long operations are supported. the transfer consists of 512 bytes of data transferred in word-mode followed by 4 bytes of ecc transferred in byte-mode. because of the unique nature of the solid-state compactflash card, the 4 bytes of ecc transferred by the host may be used by the compactflash card. the compactflash card may discard these 4 bytes and write the sector with valid ecc data. this command has the same protocol as the write sector(s) command. use of this command is not recommended. bit ->76543210 command (7) e8h c/d/h (6) xxxdrive flag cyl high (5) x cyl low (4) x sec num (3) x sec cnt (2) completion status feature (1) x bit ->76543210 command (7) 32h or 33h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) x feature (1) x data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 53 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.26 write multiple command - c5h note: the current revision of the sst compactflash card can support up to a block count of 1 as indicated in the identify drive command information this command is similar to the write sectors command. the compactflash card sets bsy within 400 ns of accepting the command. interrupts are not presented on each sector but on the transfer of a block which contains the number of sectors defined by set multiple. command execution is identical to the write sectors operation except that the number of sectors defined by the set multiple command is transferred without intervening interrupts. drq qualification of the transfer is required only at the start of the data block, not on each sector. the block count of sectors to be transferred without intervening interrupts is programmed by the set multiple mode command, which must be executed prior to the write multiple command. when the write multiple command is issued, the sector count register contains the number of sectors (not the number of blocks or the block count) requested. if the number of requested sectors is not evenly divisible by the sector/block, as many full blocks as possible are transferred, followed by a final, partial block transfer. the partial block transfer is for n sectors, where: n = remainder(sector count/block count) if the write multiple command is attempted before the set multiple mode command has been executed or when write multiple commands are disabled, the write multiple operation will be rejected with an aborted command error. errors encountered during write multiple commands are posted after the attempted writes of the block or partial block transferred. the write command ends with the sector in error, even if it is in the middle of a block. subsequent blocks are not transferred in the event of an error. interrupts are generated when drq is set at the beginning of each block or partial block. the command block registers contain the cylinder, head and sector number of the sector where the error occurred and the sector count register contains the residual number of sectors that need to be transferred for successful completion of the command e.g. each block has 4 sectors, a request for 8 sectors is issued and an error occurs on the third sector. the sector count register contains 6 and the address is that of the third sector. bit ->76543210 command (7) c5h c/d/h (6) x lba x drive head cyl high (5) cylinder high cyl low (4) cylinder low sec num (3) sector number sec cnt (2) sector count feature (1) x 54 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.27 write multiple without erase - cdh this command is similar to the write multiple command with the exception that an implied erase before write operation is not performed. the sectors should be pre-erased with the erase sector(s) command before this command is issued. 3.2.1.28 write sector(s) - 30h or 31h this command writes from 1 to 256 sectors as specified in the sector count register. a sector count of zero requests 256 sectors. the transfer begins at the sector specified in the sector number register. when this command is accepted, the compactflash card sets bsy, then sets drq and clears bsy, then waits for the host to fill the sector buffer with the data to be written. no interrupt is generated to start the first host transfer operation. no data should be transferred by the host until bsy has been cleared by the host. for multiple sectors, after the first sector of data is in the buffer, bsy will be set and drq will be cleared. after the next buffer is ready for data, bsy is cleared, drq is set and an interrupt is generated. when the final sector of data is transferred, bsy is set and drq is cleared. it will remain in this state until the command is completed at which time bsy is cleared and an interrupt is generated. if an error occurs during a write of more than one sector, writing terminates at the sector where the error occurs. the command block registers contain the cylinder, head and sector number of the sector where the error occurred. the host may then read the command block to determine what error has occurred, and on which sector. bit ->76543210 command (7) cdh c/d/h (6) x lba x drive head cyl high (5) cylinder high cyl low (4) cylinder low sec num (3) sector number sec cnt (2) sector count feature (1) x bit ->76543210 command (7) 30h or 31h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) x feature (1) x data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 55 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.1.29 write sector(s) without erase - 38h this command causes the compactflash card to set bsy, enter the idle mode, clear bsy and generate an interrupt. if the sector count is non-zero, it is interpreted as a timer count with each count being 5 milliseconds and the automatic power down mode is enabled. if the sector count is zero, the automatic power down mode is also enabled, the timer count is set to 3, with each count being 5 ms. note that this time base (5 msec) is different from the ata specification. 3.2.1.30 write verify - 3ch this command is similar to the write sector(s) command, except each sector is verified immediately after being written. this command has the same protocol as the write sector(s) command. bit ->76543210 command (7) 38h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) x feature (1) x bit ->76543210 command (7) 38h c/d/h (6) 1 lba 1 drive head (lba 27-24) cyl high (5) cylinder high (lba 23-16) cyl low (4) cylinder low (lba 15-8) sec num (3) sector number (lba 7-0) sec cnt (2) x feature (1) x 56 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 3.2.2 error posting the following table summarizes the valid status and error value for all the cf-ata command set. note: v = valid on this command table 3-12: e rror and s tatus r egister error register status register command bbk unc idnf abrt amnf drdy dwf dsc corr err check power mode v v v v v execute drive diagnostic 1 1. see table 3-7 vvv erase sector(s) v vvvvvv v format track vvvvvv v identify drive v v v v v idle v vvv v idle immediate v v v v v initialize drive parameters v v v read buffer v vvv v read multiple vvvvvvvvvv read long sector v vvvvvv v read sector(s) vvvvvvvvvv read verify sectors vvvvvvvvvv recalibrate v v v v v request sense vvvv seek vv vvv v set features v v v v v set multiple mode v v v v v set sleep mode v v v v v stand by v v v v v stand by immediate v v v v v translate sector v vvvvvv v wear level vvvvvvvv v write buffer v vvv v write long sector v vvvvvv v write multiple v vvvvvv v write multiple w/o erasev vvvvvv v write sector(s) v vvvvvv v write sector(s) w/o erasev vvvvvv v write verify v vvvvvv v invalid command code v v v v v t3-12.0 375 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 57 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 4.0 appendix 4.1 differences between cf-ata and pc card-ata/true ide this section details differences between cf-ata vs. pc card ata and the differences between cf-ata vs. true ide. 4.1.1 electrical differences 4.1.1.1 ttl compatibility cf is not ttl compatible, it is a purely cmos interface. refer to section 2.3.2 of this specification. 4.1.1.2 pull up resistor input leakage current the minimum pull up resistor input leakage current is 50k ohms rather than the 10k ohms stated in the pcmcia specification. 4.1.2 functional differences 4.1.2.1 additional set features codes in cf-ata the following set features codes are not pc card ata or true ide, but provide additional functionality in cf-ata. 69h, accepted for backward compatibility 96h, accepted for backward compatibility 97h, accepted for backward compatibility 9ah, set the host current source capability 4.1.2.2 additional commands in cf-ata the following commands are not standard pc card ata commands, but provide additional functionality in cf-ata. the command codes for the commands below are defined as vendor unique in pc card ata/true ide. c0h, erase sectors 87h, translate sector f5h, wear level the command codes for the commands below are defined as reserved in pc card ata/true ide: 03h, request sense 38h, write without erase cdh, write multiple without erase 4.1.2.3 idle timer the idle timer uses an incremental value of 5 ms, rather than the 5 sec minimum increment value specified in pc card ata/true ide. 4.1.2.4 recovery from sleep mode for cf devices, recovery from sleep mode is accomplished by simply issuing another command to the device. a hardware or software reset is not required. 58 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 5.0 physical dimensions figure 5-1: t ype 1 c ompact f lash c ard d imensions table 5-1: t ype i c ompact f lash s torage c ard p hysical s pecifications length: 36.4 0.15 mm (1.433 .006 in.) width: 42.80 0.10 mm (1.685 .004 in.) thickness: (including label area) 3.3 mm 0.10 mm (.130 .004in.) t5-1.0 375 26 50 1 3.30mm .10 (.130 in. .004) 4x r 0.5mm .1 (4x r .020 in. .004) top 42.80mm .10 (1.685 in. .004) note: the optional notched configuration was shown in the cf specification rev. 1.0. in specification rev. 1.2, the notch was removed for ease of tooling. this optional configuration can be used but it is not recommended. 375 ill5-1.0 1.433.006 (36.40) 25 41.66mm .13 (1.640 in. .005) 0.63mm .07 (.025 in. .003) 0.76mm .07 (.030 in. .003) 2x 3.00mm .07 (2x .118 in. .003) 2.15mm .07 (.085 in. .003) .99mm .05 (.039 in. .002) 1.01mm .07 (.039 in. .003) 1.01mm .07 (.039 in. .003) 1.60mm .05 (.063 in. .002) 2.44mm .07 (.096 in. .003) optional configuration (see note.) 2x 12.00mm .10 (2x .472 in. .004) 2x 25.78mm .07 (2x .1.015 in. .003) data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 59 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 6.0 product ordering information 6.1 valid combinations SST48CF008-c1 sst48cf016-c1 sst48cf024-c1 sst48cf032-c1 sst48cf048-c1 sst48cf064-c1 sst48cf096-c1 sst48cf128-c1 sst48cf192-c1 sst48cf256-c1 note: valid combinations are those products in mass production or will be in mass production. consult your sst sales repre- sentative to confirm availability of valid combinations and to determine availability of new combinations. sst 48 cf 192 - c 1 xx xx xxx x x card thickness code 1 = 3.3 mm operating temperature c = commercial: 0c to +70c device density 008 = 8 mbyte 016 = 16 mbyte 024 = 24 mbyte 032 = 32 mbyte 048 = 48 mbyte 064 = 64 mbyte 096 = 96 mbyte 128 = 128 mbyte 192 = 192 mbyte 256 = 256 mbyte device family ata/ide standard compactflash card 60 data sheet compactflash card SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256 ?2001 silicon storage technology, inc. s71125-03-000 9/01 375 7.0 limited warranty sst warrants all products against non-conformances in materials and workmanship for a period of one year from the delivery date of subject products. sst?s liability is lim- ited to replacing or repairing the product if it has been paid for. sst?s warranties will not be affected by rendering of technical advice in connection with the order of products furnished hereunder. except as expressly provided above, sst makes no warranties, express or implied, including without limitation any warranty of merchantability or fitness for a particular purpose. in no event shall sst be liable for any incidental or consequential damages with respect to the products purchased hereunder. sst reserves the right to discontinue production or change specifications or change prices at any time and without notice. the information in this publication is believed to be accu- rate in all respects at the time of publication, but is subject to change without notice. sst assumes no responsibility for any errors or omissions, and disclaims responsibility for any consequences resulting from the use of the information provided herein. sst assumes no responsibility for the use of any circuitry other than circuitry embodied in an sst product; no other circuits, patents, or licenses are implied. sst assumes no responsibility for the functioning of fea- tures or parameters not described herein. 7.1 life support policy sst?s products are not authorized for use as critical com- ponent in life support devices or systems. life support devices or systems are devices or systems that, (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a signifi- cant injury to the user. a critical component is any component of a life support device or system whose failure to perform can be expected to cause the failure of the life support device or system, or the affect its safety or effectiveness. 8.0 patent protection sst products are protected by assigned u.s. and foreign patents. 9.0 pcmcia standard compactflash memory cards are fully electrically compati- ble with the pcmcia specifications listed below. these specifications may be obtained from: pcmcia 2635 north first st. ste. 209 san jose, ca 95131 usa phone: 408-433-2273 fax: 408-433-9558 1. pcmcia pc card standard, march 1997 2. pcmcia pc card ata specification, march 1997 10.0 compactflash specification compactflash memory cards are fully compatible with the compactflash specification published by the compact- flash association. contact the compactflash association for more information. compactflash association p.o. box 51537 palo alto, ca 94303 usa phone: 415-843-1220 fax: 415-493-1871 www.compactflash.org 11.0 related documents american national standard x3.221 at attachment for interface for disk drives document this document can be ordered from global engineering documents by calling: 1-800-854-7179 silicon storage technology, inc. 1171 sonora court sunnyvale, ca 94086 telephone 408-735-9110 fax 408-735-9036 www.superflash.com or www.ssti.com |
Price & Availability of SST48CF008
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |