TMS320UC5402 datasheet(23/63 Pages) TI

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TMS320UC5402

FIXED-POINT DIGITAL SIGNAL PROCESSOR

SPRS096A – APRIL 1999 – REVISED DECEMBER 1999

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

memory-mapped registers

The ’UC5402 has 27 memory-mapped CPU registers, which are mapped in data memory space addresses 0h

to 1Fh. Table 9 gives a list of the CPU memory-mapped registers (MMRs) available on ’UC5402. The device

also has a set of memory-mapped registers associated with peripherals. Table 10, Table 11, and Table 12 show

additional peripheral MMRs associated with the ’UC5402.

Table 9. CPU Memory-Mapped Registers

NAME

ADDRESS

DESCRIPTION

NAME

DEC

HEX

DESCRIPTION

IMR

Interrupt mask register

IFR

Interrupt flag register

–

2–5

Reserved for testing

ST0

Status register 0

ST1

Status register 1

Accumulator A low word (15–0)

Accumulator A high word (31–16)

Accumulator A guard bits (39–32)

Accumulator B low word (15–0)

Accumulator B high word (31–16)

Accumulator B guard bits (39–32)

TREG

Temporary register

TRN

Transition register

AR0

Auxiliary register 0

AR1

Auxiliary register 1

AR2

Auxiliary register 2

AR3

Auxiliary register 3

AR4

Auxiliary register 4

AR5

Auxiliary register 5

AR6

Auxiliary register 6

AR7

Auxiliary register 7

Stack pointer register

Circular buffer size register

BRC

Block-repeat counter

RSA

Block-repeat start address

REA

Block-repeat end address

PMST

Processor mode status (PMST) register

XPC

Extended program page register

–

Reserved

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