EDSTRG40DILAX datasheet(40/78 Pages) TI

40 / 78 page

GLOSSARY/SYMBOLS, TERMS, AND DEFINITIONS

1–32

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gang programmer:

An interactive, menu-driven system that provides programming support for on-chip EEPROM

or EPROM of the TMS370 microcontrollers in a production environment

HALT mode:

An operating mode that reduces operating power by stopping the internal clock, which stops

processing in all the modules. This is the lowest-power mode in which all register contents are preserved.

IDLE mode:

An operating mode in which the CPU stops processing and waits for the next interrupt. It is not a low-

power mode.

immediate operand:

An operand whose actual constant value is specified in the instruction and placed after the

opcode in the machine code

index:

An 8-bit unsigned number added to a base address to give a final address

instruction:

The basic unit of programming that causes the execution of one operation; consists of an opcode and

operands, along with optional labels and comments

interrupt:

A signal to the CPU that stops the flow of a program and forces the CPU to execute instructions at an

address corresponding to the source of the interrupt. When the interrupt is finished, the CPU resumes execution

at the point where it was interrupted.

isochronous:

see isosynchronous-communications mode

isosynchronous-communications mode:

An SCI mode in which data transmission is synchronized by a

clock signal (SCICLK) common to both the sender and receiver. The format is identical to the asynchronous-

communications mode and consists of a start bit, data bits, an optional parity bit, and a stop bit.

When used in the context of specifying a given number of bits of information, 1K = 210 = 1024 bits. Thus,

64K = 64

× 1024 = 65 536 bits.

label:

A symbol that begins in column 1 of a source statement and corresponds to the address of that statement.

linker:

A software tool that combines object files to form an object module that can be allocated into system memory

and executed by the devices

LOW ADDR/HI ADDR:

External memory address bus. Output only. Port B is the low address, and Port C is the high

address.

low-power mode:

An operating mode that reduces operating power by reducing or stopping the activity of various

modules. There are two low-power modes: HALT and STANDBY.

EDSTRG40DILAX Datasheet(PDF) 40 Page - Texas Instruments

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