DSP56857 datasheet(76/662 Pages) FREESCALE

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Introduction

5685X Digital Signal Controller User Manual, Rev. 4

2-8

Freescale Semiconductor

Figure 2-4. 56857 Signals Identified by Functional Group2

1. Specifically for PLL, OSC, and POR.

2. Alternative pin functions are shown in parentheses.

56857

Logic

Power

I/O

Power

SCI 0

JTAG /

Enhanced

OnCE

Timer

Module

ESSI 0

SPI

Chip

Select

Analog

Power1

PLL/Clock

Host

Interface

SCI 1

ESSI 1

Interrupt/

Program

Control

VDD

VSS

VDDIO

VSSIO

VDDA

VSSA

CS0 - CS3 (GPIOA0 - A3)

HD0 - HD7 (GPIOB0 - B7)

HA0 - HA2 (GPIOB8 - B10)

HRW (HRD) (GPIOB11)

HDS (HWR) (GPIOB12)

HCS (GPIOB13)

HREQ (HTRQ) (GPIOB14)

HACK (HRRQ) (GPIOB15)

TIO0 - TIO3 (GPIOG0 - G3)

IRQA

IRQB

MODE A, MODE B, MODE C

(GPIOH0 - H2)

RESET

RSTO

Host

Interface

XTAL (CLKIN)

RXDO (GPIOE0)

TXDO (GPIOE1)

RXD1 (GPIOE2)

TXD1 (GPIOE3)

STD0 (GPIOC0)

SRD0 (GPIOC1)

SCK0 (GPIOC2)

SC00 (GPIOC3)

SC01 (GPIOC4)

SC02 (GPIOC5)

MISO (GPIOF0)

MOSI (GPIOF1)

SCK (GPIOF2)

SS (GPIOF3)

STD1 (GPIOD0)

SRD1 (GPIOD1)

SCK1 (GPIOD2)

SC10 (GPIOD3)

SC11 (GPIOD4)

SC12 (GPIOD5)

EXTAL

CLKO

TCK

TDI

TDO

TMS

TRST

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