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| PM8172 System Controller Released PM8172 System Controller FEATURES The PM8172 system controller is ideal for various designs of advanced set-top boxes, DVD players, game stations, and Internet terminal appliances. The PM8172 interfaces to PMC-Sierra's RM5231A, RM7035C and RM7935 MIPS RISC processors. FLASH/ROM INTERFACE * Supports Flash memory area up to 64 Mbytes, with 8-bit, 16-bit, and 32-bit data access capability. * Supports a ROM area size up to 4 Mbytes, with 8-bit, 16-bit, and 32-bit data access capability. * Supports a maximum of 12 chip-select signals. * Shared with a 68K-like peripheral bus. * Provides a PCI arbiter that supports up to five individual bus master devices. * Supports 33 MHz bus frequency. * Provides a 32-bit data bus interface. INTERRUPT CONTROLLER * Supports a maskable interrupt to the CPU and a non-maskable interrupt to the CPU for severe events. * The priority order of interrupt request lines can be assigned by software. * Module interrupts can be masked on/off independently by setting the corresponding mask registers. CPU INTERFACE * Connects to PMC-Sierra's RM5231A, RM7035C, and RM7935 64-bit MIPS RISC microprocessors. * Supports CPU bus frequencies up to 100 MHz. PERIPHERAL BUS CONTROLLER * Provides a 68K-like bus interface. * Does not require an external latch for addressing. * Provides an 8-bit and 16-bit data bus interface. * Shared with the Flash/ROM interface. * Supports up to four DMA channels. * Provides cycle posting to avoid performance hits from slower devices. DMA CONTROLLER * Supports four channel requests for LPC or ECP DMA mode data transfers. * Supports PCI bus master accessing to the SDRAM. SDRAM CONTROLLER * 32-bit data bus interface. * Supports two banks of SDRAM, up to 128 Mbytes in size. * Provides a deep buffer for CPU to SDRAM burst transfers and for PCI to SDRAM burst transfers. * Supports bus frequencies up to 100 MHz. PCI BUS CONTROLLER * Provides CPU to PCI buffers for burst transfers. CHAINING DMA CONTROLLER * Supports four independent software DMA channels for transferring data between SDRAM and PCI devices. BLOCK DIAGRAM Peripheral Bus Peripheral Bus Controller Timer & Power Management CPU Bus (32-bit 100 MHz) Flash/ROM Interface Real Time Clock CPU/PCI Bridge Consumer IR SDRAM Controller & CDMAC PCI Host Bus (32-bit, 33 MHz) Arbiter Serial Port Two Smart Card Reader Interfaces Low Pin Count Interface Memory Bus (32-bit 100 MHz) ATA 33 IDE Controller Bridge & DMA Controller OHCI USB Host Controller PMU Internal Bus Audio Controller & AC'97 & I2 S & S/PDIF Interface Parallel Port IEEE 1284 Interrupt Controller GPIO & I 2 C Interface PMC-2032127 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., (c) Copyright ITE, 2001. Reused with permission. All rights reserved. PM8172 System Controller PM8172 System Controller * Supports chaining and non-chaining modes. * Supports rotating and fixed priority types. CONSUMER IR * Supports 27-58 KHz, 400 - 500 KHz devices. * Supports up to two CIR channels. * Channel 0 (CIR0) supports a remote power-on switch and Channel 1 (CIR1) is shared with the GPIO pins. GENERAL PURPOSE I/O (GPIO) FUNCTIONS * GPIO pins can be programmed as inputs, outputs, or as interrupt inputs. * Interrupt events can be independently programmed to rising edge or falling edge trigger. * Maximum 21 pins. TIMERS * Provides two 16-bit auto-reload counters with pre-scale (1,1/4,1/8, 1/16) from division of the CPU clock. * Supports interrupt generation upon the timer time-out. * Provides one Watchdog timer to monitor the VALIDOUT# signal. AUDIO DIGITAL CONTROLLER * Directly interfaced to AC97 CODEC for controlling voice data to the speaker or from the microphone. * Provides sample rate conversion. * Supports an FM synthesizer. * Supports a digital mixer. * Supports S/PDIF output. * Supports I2S input. LOW PIN COUNT (LPC) HOST CONTROLLER * Compliant with the Intel LPC Interface specification Rev. 1.0 (Sept. 29, 1997). * Supports the Serial IRQ protocol. * Supports the Encoded DMA protocol. * For system expansion. SMART CARD INTERFACE * Compliant with the Personal Computer Smart Card (PC/SC) Working Group standard. * Compliant with Smart Card (ISO 7816) protocols. * Provides card present detection. * Supports Smart Card insertion poweron. * Supports one programmable clock frequency, and 7.1 MHz and 3.5 MHz (default) card clocks. * Supports two channels of the Smart Card interface. * Supports the T=0, T=1 protocol. 16C550 UART * Supports one standard serial port. POWER MANAGEMENT * Provides software controllable power management. * Provides intelligent power management reducing power consumption for lower power system. * Provides function wake up through the interrupt, GPIO pins or remote control interface Clock Oscillator and DLL. * Provides a clock oscillator of 32.768 KHz for the RTC and a clock oscillator of 24.576 MHz for the audio controller. * Provides two DLLs for reducing clock skew of 100 MHz host processor clock and 33 MHz PCI clock. * Each clock oscillator and DLL can be programmed to STANDBY mode. IEEE 1284 PARALLEL PORT * Standard mode - Bi-directional SPP. * Enhanced mode - EPP V. 1.7 and EPP V. 1.9 compliant. * High speed mode - ECP, IEEE 1284 compliant. * Provides back-drive current reduction. * Provides printer power-on damage reduction. ATA 33 IDE BUS CONTROLLER * Provides one channel IDE controller for two devices. * Supports master/DMA/slave mode IDE. * Supports any 16-bit and 32-bit ordering access to the IDE data port in bus-slave access mode. * Provides an integrated 8-level 32-bit post-write buffer and a 16-level 16-bit pre-fetch buffer. * Compatible with ATA/ATAPI-4. * Compatible with the ANSI ATA proposed PIO modes 0, 1, 2, 3, 4 with flow control, DMA modes 0, 1, 2 and UDMA modes 0, 1, 2. USB HOST CONTROLLER * Supports two USB host ports. * Supports device bandwidth of 12 Mbps or 1.5 Mbps. * Supports a power management mode to protect USB Bus power, and overcurrent detector to protect USB bus from abnormal over-current load. * Fully compatible with version 1.1. of the USB specification and registercompatible with version 1.0 of the OHCI specification issued by Microsoft, Compaq and NS. REAL TIME CLOCK * Compatible with MC146818. * Provides 241-byte battery-backed CMOS SRAM. * Provides a daylight saving function. * Provides 12/24 hour format and BCD/digital format. * Includes one date alarm and one year alarm PACKAGE * 400-pin BGA package. Head Office: PMC-Sierra, Inc. 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 1.604.415.6000 Fax: 1.604.415.6200 To order documentation, send email to: document@pmc-sierra.com or contact the head office, Attn: Document Coordinator All product documentation is available on our web site at: http://www.pmc-sierra.com For corporate information, send email to: info@pmc-sierra.com PMC-2032127 (R1) For a complete list of PMC-Sierra's trademarks, see our web site at: http://www.pmc-sierra.com/legal/. Other product and company names mentioned herein may be the trademarks of their respective owners. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE |
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