Holtek HT66F20-1 Manual page 103

HT66F20-1/HT66F30-1/HT68F20-1/HT68F30-1
Flash MCU with EEPROM
Counte� Value
CCRA
CCRP
TnO�
TnPAU
TnPOL
CCRP Int.
Flag TnPF
CCRA Int.
Flag TnAF
TM O/P Pin
(TnOC=1)
TM O/P Pin
(TnOC=0)
PWM Duty Cycle
set �y CCRP
Note: 1. Here TnDPX=1 -- Counter cleared by CCRA
2. A counter clear sets the PWM Period
3. The internal PWM function continues running even when TnIO [1:0]=00 or 01
4. The TnCCLR bit has no influence on PWM operation
5. n=1
Rev. 1.40
Counte� clea�ed
�y CCRA
Pause Resu�e
PWM Pe�iod
set �y CCRA
PWM Mode – TnDPX=1
10�
TnDPX = 1; TnM [1:0] = 10
Counte� Reset when
TnO� �etu�ns high
Counte� Stop if
TnO� �it low
PWM �esu�es
ope�ation
Output cont�olled �y
Output Inve�ts
othe� pin-sha�ed function
when TnPOL = 1
�ove��e� ��� �01�
Ti�e