T8302 Просмотр технического описания (PDF) - Agere -> LSI Corporation

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T8302

Internet Protocol Telephone Advanced RISC Machine (ARM®) Ethernet QoS Using IEEE® 802.1q

Agere -> LSI Corporation 

Data Sheet

July 2001

T8302 Internet Protocol Telephone

Advanced RISC Machine (ARM )

1 Introduction (continued)

1.1 PT_ARM Features

The IPT_ARM is a high-performance communications processor; it supports 100 Mbits/s Ethernet, USB, and IrDA,

and provides all general system processing functions. The features of the IPT_ARM are as follows:

s ARM 940T with ARM 9TDMI 32-bit core processor.

s Processor clock speeds up to 57.6 MHz.

s Instruction cache, 1K x 32.

s Data cache, 1K x 32.

s Internal SRAM, 1K x 32.

s Two 10/100Base-T Ethernet PHYs.

s Ethernet 10/100 repeater capabilities for in-line Ethernet connection from network to PC.

s USB host bus interface including isochronous support.

s IrDA infrared communications interface.

s Asynchronous communications interface.

s Serial communications controller and interface.

s Parallel I/O up to 16 bits.

s LED control interface.

s Keyboard scan circuitry.

s DMA control for up to four channels.

s Four general-purpose timer counters for flexible timing control.

s Real-time clock.

s SDRAM external memory interface.

s FLASH external memory interface.

s Interprocessor communication memories for data transfer to the IPT_DSP.

s Interprocessor token and interrupt registers for control and communication between the IPT_ARM and the

IPT_DSP.

s JTAG control for test and debugging.

s Implementation in 0.25 µm, 3 V silicon technology.

s Packaged in a 272-pin PBGA.

Agere Systems Inc.

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