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M30220MX-XXXGP

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

Tentative Specifications REV.E

Mitsubishi microcomputers

Specifications in this manual are tentative and subject to change.

M30220 Group

Clock Generating Circuit

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Clock Control

Figure 1.9.3 shows the block diagram of the clock generating circuit.

XCIN

CM04

XCOUT

CM10 “1”

Write signal

RESET

Software reset

NMI

Interrupt request

level judgment

output

WAIT instruction

SQ

R

SQ

R

Sub clock

XIN

XOUT

Main clock

CM05

CM02

1/32

CM14=1

fC1

fC32

fC132

CM14=0

f1

fC

fAD

f8

f32

bc

a Divider d CM07=0

fC

CM07=1

BCLK

CM0i : Bit i at address 000616

CM1i : Bit i at address 000716

WDCi : Bit i at address 000F16

b

c

a

1/2

1/2

1/2

1/2

1/2

CM06=1

CM06=0

CM17,CM16=10

CM06=0

CM17,CM16=11

d

CM06=0

CM17,CM16=01

CM06=0

CM17,CM16=00

Details of divider

Figure 1.9.3. Clock generating circuit

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