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| SN11012 2002/6/26 0.2 Confidential USB to SM/Flash Interface Controller, Mass Storage Class Compliant 1 General Description SN11012 is a high-performance integrated circuit to bridge USB and SM/Flash compliance devices. It provides a flexible and cost efficient single chip solution for external storage applications that intend to utilize the convenience of USB. To help the system manufacturers to build high quality, low cost USB storage systems, several special features are implemented. SN11012 can be easily configured to access SM and/or NAND type flash devices. With supporting flash memory capability, the combo system which supports both card reader and thumb drive can be built without any special effort. The embedded translation table help the system makers to design a high performance SM card or NAND type flash accessing device but still keeps the cost low. The proprietary randomization algorithm effectively extends the lifetime of the SM card and flash memory, ensuring the robustness of the system. The real time ECC correction keeps the data integrity while still maintains the high data transfer rate. The external serial EEPROM provides the possibility to customize the USB identity for each product. The OEM makers could make products for different customers by just putting the vendor/product ID and names in the EEPROM but still keep other things the same. The serial number can help the system manufacturers to track down every single device they made even when the design and the PID/VID are all the same. The USB Mass Storage Class compliance capability of SN11012 makes it a truly "plug-and-play" device without vendor drivers needed under the OS like Windows 2000/ME/XP and Mac OS 9/10. This feature not only makes the system developing faster and easier, but also reduces the cost and increases the reliability. The SN11012 even provides the capability to boot the PC. Therefore, the system manufacturers can use it to build a much faster, high capacity, reliable, and portable system to replace the legacy floppy disk easily. 1 SN11012 2002/6/26 0.2 Confidential With so many functions built- in and the high performance, easy to design- in architecture, SN11012 is an ideal choice for building a portable USB to SM/Flash storage system. 2 Features l l l l l l l l l 12 MHz USB 1.1 full-speed compatible. USB 1.1 Mass Storage Class compliant USB Mass Storage Class Bulk-Only Transport 1.0 supported USB Mass Storage Class SCSI transparent command set supported 12 characters of serial number and up to 28 characters of Vendor/Product/Revision string supported with external EEPROM Support 3.3V, 4Mbytes to 128 Mbytes SSFDC(SmartMedia Card) Support NAND-type flash memory, from 4Mbytes to 128 Mbytes Real-time ECC correction circuit to ensure the data integrity and accelerate the access speed for SmartMedia/NAND-type flash. Built- in SRAM to support logical-to-physical address translation for SmartMedia/NAND-type flash to reduce cost and increase performance and reliability Supports Hot-Swapping among flash memory and SM card without un-plug USB. Built- in FIFO for upstream and downstream data transfer Data transfer rate up to 1.5 MB/s (burst), 1.1 MB/s (read average), LED lightening pin available. PC boot up capability provided (PC BIOS needs to support USB ZIP boot up) (version 2 only) No Driver needed under Microsoft Windows ME/2000/XP, Mac OS 9.x/10.x Driver support Microsoft Windows 98 Single 3.3V operation 48 pin LQFP package. 2 l l l l l l l l l SN11012 2002/6/26 0.2 Confidential 3 Pin Assignment Pin# PAD Name Type Drive Special Description 1 GND 2 SMD6 3 SMD2 4 SMD7 5 SMD1 6 SMD0 7 SMWP 8 SMRB 9 SMWE 10 SMRE 11 SMALE 12 GND 13 VDD 14 SMCLE 15 FLCE 16 NC 17 NC 18 NC 19 LED 20 RSTN 21 TEST 22 SMCE 23 XIN 24 XOUT 25 SMCDET DO 8mA PD DI DI DO 8mA I O DI PU PU PU PD PWR DIO 8mA PD DIO 8mA PD DIO 8mA PD DIO 8mA PD DIO 8mA PD DO 8mA DI DIO 8mA PD DIO 8mA PD DO 8mA PWR PWR DO 8mA DO 8mA Digital ground SM/Flash data bit 6 SM/Flash data bit 2 SM/Flash data bit 7 SM/Flash data bit 1 SM/Flash data bit 0 SM/Flash write protect SM/Flash ready/busy SM/Flash write enable SM/Flash read enable SM/Flash address latch enable Digital ground Digital 3.3V SM/Flash command latch enable Flash chip enable Not Connected Not Connected Not Connected LED lighter Chip reset Test pin SM chip enable Crystal input or oscillator input Crystal output or no connection SM card detect SM write protect switch 3 26 SMWPSW DI SN11012 2002/6/26 0.2 Confidential 27 SMPOWER DO 8mA OC 28 GPIO0 29 ROMCS 30 GND 31 VDD 32 ROMSK 33 ROMDI 34 ROMDO 35 FLCDET DIO 8mA DIO 4mA PWR PWR DIO 4mA DIO 4mA DIO 4mA DI PU SM/Flash power control General Purpose Input/Output 0 Chip select for external EEPROM Digital ground Digital 3.3V Clock for external serial EEPROM Serial data to external EEPROM Serial data from external EEPROM Flash card detect Flash write protect switch analog 3.3V analog ground 36 FLWPSW DI 37 AVDD 38 AVSS 39 DPLUS 40 DMINUS 41 NC 42 NC 43 NC 44 NC 45 SMD4 46 SMD5 47 SMD3 48 VDD PWR PWR AIO AIO - USB D+ signal USB D- signal Not Connected Not Connected Not Connected Not Connected DIO 8mA PD DIO 8mA PD DIO 8mA PD P - SM/Flash data bit 4 SM/Flash data bit 5 SM/Flash data bit 3 Digital 3.3V P: power pin; AI: analog input pin, AIO: analog input/output pin; DI: digital input pin; DO: digital output pin; DIO: digital input/output pin. TTL: TTL compatible input pin; PD: pull down; PU: pull up. All pads are Schmitt triggered and with slew rate control 4 SN11012 2002/6/26 0.2 Confidential 4 Package diagram LQPF 48 Package FF LL WC PD SE WT RRR RG OOO OP MMMV G M I DDSDNCO OI KDDS 0 S MS S P MM O WC WP D ESE R WT 36 35 34 33 32 31 30 29 28 27 26 25 AD VD A SS V DS PLU D IN S MU N C N C N C N C SM 4 D SM 5 D SM 3 D VD D 37 38 39 40 41 42 43 44 45 46 47 48 1 2 3 4 5 6 7 8 9 10 11 12 GS S S SS S S S S S G N MMMMMMMMMMN D D D D D D WR WR A D 6 2 7 10 PBEEL E 24 23 22 21 20 19 18 17 16 15 14 13 XU OT X IN SM E C TE ST R STN LD E N C N C N C FL E C SM LE C VD D 5 SN11012 2002/6/26 0.2 Confidential 6 SN11012 2002/6/26 0.2 Confidential 5 Version Control Draft 0.1 0.2 May-20-2002 June-17-2002 June-25-2002 add new feature for version 002 7 |
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