Texas-instruments TMS320C3x Manual de usuario descargar pdf (Pagina 734)

100

101

D-1

Appendix A

Glossary

A0–A23: External address pin

for data/program memory or I/O devices.

These pins are on the primary bus.

address: The location of program code or data stored in memory.

addressing mode: The method by which an instruction interprets its oper-

ands to acquire the data it needs.

ALU:

Arithmetic logic unit.

The part of the CPU that performs arithmetic and

logic operations.

analog-to-digital (A/D) converter: A converter with internal sample-and-

hold circuitry used to translate an analog signal to a digital signal.

ARAU:

Auxiliary-register arithmetic unit.

A 32-bit ALU used to calculate indi-

rect addresses using the auxiliary registers as inputs and outputs.

arithmetic logic unit (ALU): The part of the CPU that performs arithmetic

and logic operations.

auxiliary registers (ARn): A set of registers used primarily in address gen-

eration.

auxiliary-register arithmetic unit (ARAU):

Auxiliary-register arithmetic

unit.

A 32-bit ALU used to calculate indirect addresses using the auxiliary

registers as inputs and outputs.

bit-reversed addressing: Accessing data from memory, registers, and the

instruction word by reversing several bits of an address in order to speed

processing of algorithms, such as Fourier transforms.

Appendix D

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