Datasheet

Appendix B Internal I/O Registers
Rev. 8.00 Mar. 09, 2010 Page 590 of 658
REJ09B0042-0800
PWCR1—PWM1 Control Register H'D0 10-Bit PWM
Bit
Initial value
Read/Write
7
⎯
1
⎯
6
⎯
1
⎯
5
⎯
1
⎯
4
⎯
1
⎯
3
⎯
1
⎯
0
PWCR10
0
W
2
PWCR12
0
*
2
R/W
1
PWCR11
0
W
Clock Select
0 The input clock is φ (tφ
*
1
= 1/φ)
The conversion period is 512/φ, with a minimum modulation width of 1/2φ
The input clock is φ/2 (tφ
*
1
= 2/φ)
The conversion period is 1,024/φ, with a minimum modulation width of 1/φ
1
The input clock is φ/4 (tφ
*
1
= 4/φ)
The conversion period is 2,048/φ, with a minimum modulation width of 2/φ
The input clock is φ/8 (tφ
*
1
= 8/φ)
The conversion period is 4,096/φ, with a minimum modulation width of 4/φ
Notes: 1. tφ: Period of PWM1 input clock
2. 1 on products other than the H8/38124 Group
0 10-bit PWM
PWH Output Select (H8/38124 Group only)
1 Event counter PWM