TMP93CS44 datasheet(220/224 Pages) TOSHIBA

220 / 224 page

TMP93CS44/S45

2004-02-10

93CS44-218

Points of Note and Restriction

(1) Notation

1. Explanation of a built-in I/O register: Register symbol<Bit symbol>

Example: TRUN<T0RUN> … Bit T0RUN of register TRUN

2. Read-modify-write instruction

An instruction in which the CPU executes following by one instruction.

1. CPU reads data of the memory.

2. CPU modifies the data.

3. CPU writes the data to the same memory.

Example 1: SET

3, (TRUN) … Set bit3 of TRUN

Example 2: INC

1, (100H)

… Increment the data of 100H

•

A sample read-modify-write instructions using the TLCS-900

Exchange

(mem), R

Arithmetic operation

ADD (mem), R/#

ADC (mem), R/#

SUB

(mem), R/#

SBC

(mem), R/#

INC

#3, (mem)

DEC #3, (mem)

Logical operation

AND (mem), R/#

(mem), R/#

XOR (mem), R/#

Bit manipulation

STCF #3/A, (mem)

SET

#3, (mem)

RES

#3, (mem)

TSET #3, (mem)

CHG #3, (mem)

Rotate and shift

RLC

(mem)

RRC

(mem)

SLA

(mem)

SRA

(mem)

SLL

(mem)

SRL

(mem)

RLD

(mem)

RRD (mem)

3. fc, fs, fFPH, fSYS, 1 state

The clock frequency input from pins X1 and X2 pin is called fc, and the clock frequency

input from XT1, XT2 pin is called fs. The clock frequency selected by SYSCR1<SYSCK,

GEAR2:0>is called system clock fFPH, and the clock frequency given by fFPH divided by 2 is

called fSYS. One cycle of fSYS is called 1 state.

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