7733 datasheet(933/940 Pages) RENESAS

933 / 940 page

7733/7735/7736 Group User’s Manual

Term

Meaning

Relevant term

Underflow

Countup/Count up

Stop mode

Wait mode

Fetch

Pull-up

Pull-down

Scan output

Return input

Key matrix

Bus control signal

Wait mode

Main clock

Internal clock

Clock synchronous

serial I/O

Overflow

Count down/Countdown

Stop mode

Overflow

Power saving

Prefetch

Pull-down

Pull-up

Read-modify-write

instruction

Return input

Scan output

Signal required for

accessing external

device

Stop mode

Sub clock

Synchronizing clock

System clock

UART

Underflow

Wait mode

noun

verb

noun

A state where the result obtained by the countup is

greater than the counter resolution

Means saving the power consumption by using the

stop or wait mode, etc.

Means taking an op-code and operand from a memory

into an instruction queue buffer.

Means connecting with Vss line for stabilizing its I/O

level.

Means connecting with Vcc line for stabilizing its I/O

level.

An instruction which reads the contents of SFR and

RAM, modifies them, and writes them back to the same

addresses.

They are the ASL, CLB, DEC, INC, LSR, ROL, ROR,

and SEB instructions

Input signal from the key matrix to the microcomputer.

It is used to detect a key input

Output signal from the microcomputer to the key

matrix. It is used to detect a key input.

A generic name for a bus control signal, an address

bus signal, a data bus signal, and a chip select

signal. (Note that the chip select signal is only for the

7735 Group or external bus mode B of the 7736 Group.)

A state where all of the oscillation circuits stop oper-

ating and the program execution is stopped. By ex-

ecuting the STP instruction, the microcomputer enters

the stop mode.

A clock which is input from pin XCIN

A transfer clock for the clock synchronous serial I/O

One of the following: the main clock, which is input

from pin XIN or the sub clock, which is input from pin

XCIN

Note: In the microcomputers other than the 7733/7735/

7736 Group, definition of “system clock” may

be different.

Clock asynchronous serial I/O.

When it is used as the name of a functional block, this

term also means the serial I/O which can be switched

to the clock synchronous serial I/O.

A state where the result obtained by the countdown is

greater than the counter resolution

A state where one or more oscillation circuits are op-

erating (in other words, they are oscillating), however,

the program execution is stopped. By executing the

WIT instruction, the microcomputer enters the wait mode.

7733 Datasheet(PDF) 933 Page - Renesas Technology Corp

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