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EP9312-CBZ

Universal Platform System-on-chip Processor

Cirrus Logic 

EP9312

Universal Platform SOC Processor

Hardware Debug Interface

The JTAG interface allows use of ARM’s Multi-ICE or

other in-circuit emulators.

Table R. Hardware Debug Interface

Pin Mnemonic

Pin Name - Description

TCK

TDI

TDO

TMS

TRSTn

JTAG Clock

JTAG Data In

JTAG Data Out

JTAG Test Mode Select

JTAG Port Reset

12-channel DMA Controller

The DMA module contains 12 separate DMA channels.

Ten of these may be used for peripheral-to-memory or

memory-to-peripheral access. Two of these are

dedicated to memory-to-memory transfers. Each DMA

channel is connected to the 16-bit DMA request bus.

The request bus is a collection of requests, Serial Audio

and UARTs. Each DMA channel can be used

independently or dedicated to any request signal. For

each DMA channel, source and destination addressing

can be independently programmed to increment,

decrement, or stay at the same value. All DMA

addresses are physical, not virtual addresses.

Internal Boot ROM

The Internal 16 Kbyte ROM allows booting from FLASH

memory, SPI or UART. Consult the EP93xx User’s Guide

for operational details.

DS515PP7

©Copyright 2005 Cirrus Logic (All Rights Reserved)

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