M16C30_02 Datasheet, PDF (36/178 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Clock Generating Circuit
Mitsubishi microcomputers
M16C / 30 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Clock Control
Figure 1.10.3 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 ^fC32
fC
f1
fAD
f8
f32
f1SIO2
f8SIO2
f32SIO2
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 1.10.3. Clock generating circuit
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