Holtek HT66F488 Manual page 96

Counte� Value Counte� ove�flow
CCRP=�
�x3FF
CCRP
CCRA
PTnO�
PTnPAU
PTnPOL
CCRP Int. Flag
PTMnPF
CCRA Int. Flag
PTMnAF
PTM O/P
Pin
Output pin set to
initial Level Low
if PTnOC=�
Compare Match Output Mode – PTnCCLR=0 (n=0, 1)
Note: 1. With PTnCCLR=0 a Comparator P match will clear the counter
2. The TM output pin is controlled only by the PTMnAF flag
3. The output pin is reset to itsinitial state by a PTnON bit rising edge
Rev. 1.21
CCRP > �
Counte� clea�ed �y CCRP value
CCRP > �
Output Toggle with
PTMnAF flag
�ote PTnIO [1:�] = 1�
He�e PTnIO [1:�] = 11
Active High Output select
Toggle Output select
�6
HT66F488/HT66F489
A/D Flash MCU with EEPROM
PTnCCLR = �; PTnM [1:�] = ��
Counte�
Resu�e
Resta�t
Pause Stop
Output not affected �y
PTMnAF flag. Re�ains High
until �eset �y PTnO� �it
Output Pin
Reset to Initial value
un-defined
�ove��e� ��� 2�1�
Ti�e
Output Inve�ts
when PTnPOL is high