DSP56855E View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

DSP56855E

16-bit Digital Signal Controllers

Freescale Semiconductor 

Logic

Power

I/O

Power

Analog

Power1

External

Bus

Chip

Select

VDD

VSS

VDDIO

VSSIO

VDDA

VSSA

A0 - A20

D0 - D15

RD

WR

1

4

1

4

1

1

10

10

1

1

1

1

1

1

1

56855 1

21

16

1

1

RXDO (GPIOE0)

TXDO (GPIOE1)

RXD1 (GPIOE2)

TXD1 (GPIOE3)

STD0 (GPIOC0)

SRD0 (GPIOC1)

SCK0 (GPIOC2)

SC00 (GPIOC3)

SC01 (GPIOC4)

SC02 (GPIOC5)

CS0 - CS3 (GPIOA0 - A3)

4

Introduction

SCI 0

SCI 2

ESSI 0

Timer

Module

TIO0 (GPIOG0)

1

XTAL

1

EXTAL

1

CLKO

1

Interrupt/

Program

Control

IRQA

1

IRQB

1

MODA, MODB, MODC

(GPIOH0 - H2)

3

RESET

1

RSTO

1

1

TCK

1

TDI

TDO

1

1

TMS

1

TRST

DE

1

Figure 2-1 56855 Signals Identified by Functional Group2

1. Specifically for PLL, OSC, and POR.

2. Alternate pin functions are shown in parentheses.

Freescale Semiconductor

56855 Technical Data, Rev. 6

PLL/Clock

JTAG /

Enhanced

OnCE

9

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