M16C62P_06 Datasheet, PDF (110/421 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

M16C/62P Group (M16C/62P, M16C/62PT)
10. Clock Generation Circuit
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
Oscillator
Mode
divided by 1
divided by 2
divided by 4
divided by 8
divided by 16
On-chip Oscillator Low Power
Dissipation Mode
CM2
Register
CM21
0
0
0
0
0
0
−
0
1
1
1
1
1
1
CM1 Register
CM11
1
0
0
0
0
0
0
0
0
0
0
0
0
CM17, CM16
00b
00b
01b
10b
-
11b
−
−
00b
01b
10b
−
11b
0
(NOTE 2)
CM07
0
0
0
0
0
0
1
1
0
0
0
0
0
0
CM0 Register
CM06
0
0
0
0
1
0
−
1⁽¹⁾
0
0
0
1
0
CM05
0
0
0
0
0
0
0
1⁽¹⁾
0
0
0
0
0
(NOTE 2)
1
CM04
−
−
−
−
−
−
1
1
−
−
−
−
−
−
− : “0” or ”1”
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 Page 95 of 390
REJ09B0185-0241