TMS320VC549 datasheet(17/111 Pages) TI

17 / 111 page

TMS320C54x, TMS320LC54x, TMS320VC54x

FIXED-POINT DIGITAL SIGNAL PROCESSORS

SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

functional block diagram of the ’54x internal hardware

T Register

A(40)

B(40)

Multiplier (17

× 17)

Fractional

MUX

Adder(40)

ZERO

ROUND

SAT

System Control

Interface

Program Address Generation

Logic (PAGEN)

Data Address Generation

Logic (DAGEN)

PC, IPTR, RC,

BRC, RSA, REA

ARAU0, ARAU1,

AR0–AR7

ARP, BK, DP, SP

Memory

And

External

Interface

Peripherals

(Serial Ports,

HPI, etc.)

PAB

CAB

DAB

EAB

Sign Ctr

MUX

EXP Encoder

Sign Ctr

MUX

ALU(40)

Barrel Shifter

MUX

COMP

TRN

MSW/LSW

Select

AB C

A Accumulator A

B Accumulator B

C CB Data Bus

D DB Data Bus

E EB Data Bus

M MAC Unit

P PB Program Bus

S Barrel Shifter

T T Register

U ALU

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