Renesas M16C/62P Series Hardware Manual page 110

M16C/62P Group (M16C/62P, M16C/62PT)
10.4.1.7 On-chip Oscillator Low Power Dissipation Mode
The main clock is turned off after being placed in on-chip oscillator mode. The CPU clock can be selected as in
the on-chip oscillator mode. The on-chip oscillator clock is the clock source for the peripheral function clocks.
If the sub clock is on, fC32 can be used as the count source for Timers A and B.
Table 10.3 Setting Clock Related Bit and Modes
Modes
PLL Operating Mode
High-Speed Mode
Medium- divided by 2
Speed Mode
divided by 4
divided by 8
divided by 16
Low-Speed Mode
Low Power Dissipation Mode
On-chip divided by 1
Oscillator
divided by 2
Mode
divided by 4
divided by 8
divided by 16
On-chip Oscillator Low Power
Dissipation Mode
NOTES:
1. When the CM05 bit is set to "1" (main clock turned off) in low-speed mode, the mode goes to low
power dissipation mode and CM06 bit is set to "1" (divided by 8 mode) simultaneously.
2. The divide-by-n value can be selected the same way as in on-chip oscillator mode.
Rev.2.41 Jan 10, 2006
REJ09B0185-0241
http://www.xinpian.net
CM2
CM1 Register
Register
CM21 CM11
0 1
0 0
0 0
0 0
0 0
0 0
−
0
0 0
1 0
1 0
1 0
1 0
1 0
1 0
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CM17, CM16 CM07
00b 0
00b 0
01b 0
10b 0
- 0
11b 0
−
1
−
1
00b 0
01b 0
10b 0
−
0
11b 0
(NOTE 2) 0
10. Clock Generation Circuit
CM0 Register
CM06 CM05 CM04
0 0
0 0
0 0
0 0
1 0
0 0
−
0
(1) (1)
1 1
0 0
0 0
0 0
1 0
0 0
(NOTE 2) 1
− : "0" or "1"
010-62245566 13810019655
−
−
−
−
−
−
1
1
−
−
−
−
−
−