Renesas Hitachi H8S/2194 Series Hardware Manual page 445

Bit 2 to 0: Carrier Frequency Select (CK2 to CK0)
Selects the carrier frequency of the PWM modulated signal. Do not set them to 111.
Bit 2 Bit 1
CK2 CK1
0 0
1
1 0
1
Rev. 2.0, 11/00, page 418 of 1037
Bit 0
CK0 Description
φ2
0
φ4
1
φ8
0
φ16
1
φ32
0
φ64
1
φ128
0
1 (Do not set)
(Initial value)