TMS320F datasheet(361/389 Pages) TI

361 / 389 page

D-1

Appendix A

Glossary

A0–A15:

Collectively, the external address bus; the 16 pins are used in par-

allel to address external data memory, program memory, or I/O space.

ACC:

See

accumulator.

ACCH:

Accumulator high word. The upper 16 bits of the accumulator. See

also

accumulator.

ACCL:

Accumulator low word. The lower 16 bits of the accumulator. See

also

accumulator.

accumulator:

A 32-bit register that stores the results of operations in the

central arithmetic logic unit (CALU) and provides an input for subsequent

CALU operations. The accumulator also performs shift and rotate opera-

tions.

address:

The location of program code or data stored in memory.

addressing mode:

A method by which an instruction interprets its operands

to acquire the data it needs. See also

direct addressing; immediate

addressing; indirect addressing.

analog-to-digital (A/D) converter:

A circuit that translates an analog signal

to a digital signal.

AR:

See

auxiliary register.

AR0–AR7:

Auxiliary registers 0 through 7. See auxiliary register.

ARAU:

See

auxiliary register arithmetic unit (ARAU).

ARB:

See

auxiliary register pointer buffer (ARB).

ARP:

See

auxiliary register pointer (ARP).

auxiliary register:

One of eight 16-bit registers (AR7–AR0) used as point-

ers to addresses in data space. The registers are operated on by the aux-

iliary register arithmetic unit (ARAU) and are selected by the auxiliary

Appendix D

TMS320F Datasheet(PDF) 361 Page - Texas Instruments

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