Holtek HT68F Series Manual page 156

ETM, PWM Mode, Edge-aligned Mode, TnCCLR=0
CCRP 001b
Period 128
A D�t�
B D�t�
If f =16MHz, TM clock source select f
SYS
The TP1A PWM output frequency=(f
The TP1B_n PWM output frequency=(f
If the Duty value defined by CCRAor CCRB register is equal to or greater than the Period value, then
the PWM output duty is 100%.
ETM, PWM Mode, Edge-aligned Mode, TnCCLR=1
CCRA 1
Period 1
B D�t�
ETM, PWM Mode, Center-aligned Mode, TnCCLR=0
CCRP 001b
Period 256
A D�t�
B D�t�
ETM, PWM Mode, Center-aligned Mode, TnCCLR=1
CCRA 1
Period 2
B D�t�
Rev. 2.10
HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
HT68FU30/HT68FU40/HT68FU50/HT68FU60
Enhanced I/O Flash Type 8-Bit MCU with EEPROM
010b 011b 100b
256 38� 512
/4, CCRP=100b, CCRA=128 and CCRB=256,
SYS
/4)/512=f /2048=7.8125kHz, duty=128/512=25%.
SYS SYS
/4)/512=f
SYS SYS
2 3 ...... 511
2 3 ...... 511
CCRB
010b 011b 100b
512 768 102�
(CCRA×2)-1
(CCRB×2)-1
2 3 511
� 6 1022
(CCRB×2)-1
156
101b 110b 111b
6�0 768 896
CCRA
CCRB
/2048=7.8125kHz, duty=256/512=50%.
512 ...... 1021
512 ...... 1021
101b 110b 111b
1280 1536 1792
512 1021 1022
102� 20�2 20��
000b
102�
1022 1023
1022 1023
000b
20�6
1023
20�6
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