DSP1620 View Datasheet(PDF) - Agere -> LSI Corporation

Part Name

Description

Manufacturer

DSP1620

DSP1627 Digital Signal Processor

Agere -> LSI Corporation 

DSP1628 Digital Signal Processor

4 Hardware Architecture (continued)

Preliminary Data Sheet

February 1997

SYS

CONTROL

ins (16)

inc (16)

CACHE

cloop (7)

alf (16)

mwait (16)

i (16)

1 XAAU

MUX

ADDER

pc (16)

pt (16)

pr (16)

pi (16)

XDB

XAB

BRIDGE

IDB

YDB

x (16)

yh (16) yl (16)

DAU

16 x 16 MPY

32

p (32)

SHIFT (–2, 0, 1, 2)

MUX

ALU/SHIFT

a0 (36)

a1 (36)

16

EXTRACT/SAT

36

c0 (8)

c1 (8)

c2 (8)

auc (16)

psw (16)

j (16)

k (16)

YAAU

–1, 0, 1, 2

MUX

re (16)

CMP

ybase (16)

ADDER

MUX

r0 (16)

r1 (16)

r2 (16)

r3 (16)

rb (16)

YAB

Figure 5. DSP1600 Core Block Diagram

5-1741 (F).b

14

Lucent Technologies Inc.

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