M38202M2FS View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

Manufacturer

M38202M2FS

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

3820 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

XCIN

XCOUT

"1" "0"

Port XC switch bit

Timer 1 count

Timer 2 count

XIN

XOUT Internal system clock selection bit

source selection

source selection

(Note 1)

bit

bit

Low-speed mode

1/2

1/4

Middle/High-speed mode

"1"

1/2

"0"

Timer 1

"0"

"1"

Timer 2

Main clock division ratio selection bit

Middle-speed mode

Main clock stop bit

High-speed mode

or Low-speed mode

Timing φ

(Internal system clock)

QS

R

SQ

STP instruction WIT

R

instruction

QS

R STP instruction

Reset

Interrupt disable flag I

Interrupt request

Note : When using the low-speed mode, set the port XC switch bit to "1" .

Fig. 37 Clock generating circuit block diagram

42

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