M37510M1FP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M37510M1FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

7510 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

FUNCTIONAL DESCRIPTION

CENTRAL PROCESSING UNIT (CPU)

The 7510 group uses the standard 740 family instruction set. Re-

fer to the table of 740 family addressing modes and machine

instructions or the SERIES 740 <Software> User’s Manual for de-

tails on the instruction set.

Machine-resident 740 family instructions are as follows:

The FST and SLW instruction are not available for use.

The STP, WIT, MUL, and DIV instruction can be used.

CPU MODE REGISTER

The CPU mode register is allocated at address 003B16.

The CPU mode register contains the stack page selection bit and

the internal system clock selection bit.

b7

Fig. 1 Structure of CPU mode register

b0

CPU mode register (CPUM : address 003B16)

Processor mode bits

b1 b0

0 0 : Single-chip mode

0 1 : Do not use

1 0 : Do not use

1 1 : Do not use

Stack page selection bit

0 : RAM in the zero page is used as stack area

1 : RAM in page 1 is used as stack area

XCOUT drivability selection bit

0 : Low drive

1 : High drive

Port XC selection bit

0 : I/O port

1 : XCIN, XCOUT

Main clock (XIN-XOUT) stop bit

0 : Operating

1 : Stopped

Main clock division ratio selection bit

0 : XIN/2 (high-speed mode)

1 : XIN/8 (middle-speed mode)

Internal system clock selection bit

0 : XIN-XOUT selected (middle/high-speed mode)

1 : XCIN-XCOUT selected (low-speed mode)

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