M16C1N Datasheet, PDF (36/238 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/10 SERIES

M16C/1N Group
6. Clock Generation Circuit
CM10 "1"
Write signal
RESET
Software reset
Interrupt request
level judgment output
WAIT instruction
XCIN
CM04
XCOUT
SQ
R
Sub clock
XIN
XOUT
Main clock
CM05
SQ
R
CM02
CM20
a
1/2
1/32 ^fC32
Divider
f1
By CCLK4, 5, 6
fCAN0
fAD
fC
f8
f32
fMAIN
bc
On-chip
Main
clock
a _Divider d ^CM07=0
switching
oscillator _1/2
oscillation
circuit
circuit
fRING
fC
CM07=1
BCLK
Oscillation
stop detection
CM22
b
1/2
1/2
1/2
c
1/2
CM0i : Bit i at address 000616
CM1i : Bit i at address 000716
CM2i : Bit i at address 000C16
WDCi : Bit i at address 000F16
CM06=1
CM06=0
CM17, CM16=10
CM06=0
CM17, CM16=01
CM06=0
CM17, CM16=00
CM06=0
CM17, CM16=11
d
Details of divider
Figure 6.1 Block diagram of clock generating circuit
Rev.1.00 Oct 20, 2004 page 24 of 222
REJ09B0007-0100Z