TMS320DM643 datasheet(32/160 Pages) TI

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TMS320DM643

Video/Imaging Fixed-Point Digital Signal Processor

SPRS269A – FEBRUARY 2005 – REVISED APRIL 2005

Table 2-4. Terminal Functions (continued)

SIGNAL

IPD/

TYPE(1)

DESCRIPTION

IPU(2)

NAME

NO.

EMIFA (64-bit) – ADDRESS

AEA22

U23

AEA21

V24

AEA20

V25

EMIFA external address (doubleword address)

AEA19

V26

EMIFA address numbering for the DM643 device starts with AEA3 to maintain

signal name compatibility with other C64x™ devices (e.g., C6414, C6415, and

AEA18

V23

C6416) [see the 64-bit EMIF addressing scheme in the TMS320C6000 DSP

AEA17

U24

External Memory Interface (EMIF) Reference Guide (literature number

SPRU266)].

AEA16

U25

Boot Configuration:

AEA15

U26

•

Controls initialization of DSP modes at reset (I) via pullup/pulldown resistors

AEA14

T24

–

Boot mode (AEA[22:21]):

AEA13

T25

00 - No boot (default mode)

O/Z

IPD

01 - HPI boot

AEA12

R23

10 - Reserved

AEA11

R24

11 - EMIFA boot

AEA10

P23

–

EMIF clock select AEA[20:19]:

Clock mode select for EMIFA (AECLKIN_SEL[1:0])

AEA9

P24

00 - AECLKIN (default mode)

AEA8

P26

01 - CPU/4 Clock Rate

10 - CPU/6 Clock Rate

AEA7

N23

11 - Reserved

AEA6

N24

For more details, see the Device Configurations section of this data sheet.

AEA5

N26

AEA4

M23

AEA3

M24

Device Overview

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