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User’s Manual U11969EJ3V0UM00
CHAPTER 11 PWM UNIT
(2) PWM prescaler register 0 to 3 (PWPR0 to PWPR3)
This register selects the operation clock (f
PWMC
) of PWMn, and can be read/written in 8- or 1-bit units. Change
the contents of this register while the bits of the PWMCn register are 0. If the contents of this register are
changed when the setting of the PWMEn bit is 1, the operation cannot be guaranteed.
Bit Position
Bit Name
Function
1, 0
PWPn1,
PWM Prescaler Clock Mode
PWPn0
Selects operation clock of PWMn
PWPn1 PWPn0
Operation Clock (f
PWMC
)
0
0
φ
0
1
φ
/2
1
0
φ
/4
1
1
φ
/8
φ
: Internal system clock
Remark
n = 0 to 3
Address
FFFFF364H to
FFFFF37CH
7
0
PWPRn
6
0
5
0
4
0
3
0
2
0
1
PWPn1
0
PWPn0
After reset
00H
Содержание V854 UPD703006
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