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M16C/26 Datasheet(PDF) 36 Page - Renesas Technology Corp

Part # M16C/26
Description  16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES
PDF  239 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M16C/26 Datasheet(HTML) 36 Page - Renesas Technology Corp

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Renesas Technology Corp.
Clock Generating Circuit
30
M16C/26 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Under
development
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative and subject to change.
Clock Control
Figure 1.8.3 shows the block diagram of the clock generating circuit.
Figure 1.8.3. Clock generating circuit
CM21
fC32
CM02, CM04, CM05, CM06, CM07: CM0 register bits
CM10, CM11, CM16, CM17: CM1 register bits
PCLK0, PCLK1: PCLK register bits
CM21, CM27
: CM2 register bits
1/32
Main clock
generating circuit
fC
CM02
CM04
CM10=1(stop mode)
Q
S
R
WAIT instruction
CM05
Q
S
R
NMI
Interrupt request level judgment output
RESET
Software reset
fC
CM07=0
CM07=1
Divider
a
d
1/2
1/2
1/2
1/2
CM06=0
CM17–CM16=002
CM06=0
CM17–CM16=012
CM06=0
CM17–CM16=102
CM06=1
CM06=0
CM17–CM16=112
d
a
Details of divider
Sub-clock
generating circuit
XCIN
XCOUT
XOUT
XIN
f8
f32
c
b
b
1/2
c
f32SIO
f8SIO
fAD
f1
e
e
1/2
1/4
1/8
1/16
1/32
PCLK0=1
CM21
CM20
Ring
oscillator
Sub-clock
Ring
oscillator
clock
BCLK
PCLK0=0
f2
f1SIO
PCLK1=1
PCLK1=0
f2SIO
Main
clock
Oscillation
stop, re-
oscillation
detection
circuit
0
1
0
1



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