Holtek HT66F20 Manual page 165

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
Co�nter Val�e
CCRA
CCRB
TnON
Software Cleared by
Trigger CCRA match
TCKn pin
TnPAU
TnAPOL
TnBPOL
CCRB Int.
Flag TnBF
CCRA Int.
Flag TnAF
TPnA Pin
(TnAOC=�)
P�lse Width
set by CCRA
TPnA Pin
(TnAOC=0)
TPnB Pin
(TnBOC=�)
TPnB Pin
(TnBOC=0)
Note: 1. Counter stopped by CCRA
2. CCRP is not used
3. The pulse triggered by the TCKn pin or by setting the TnON bit high
4. A TCKn pin active edge will automatically set the TnON bit high
5. In the Single Pulse Mode, TnAIO [1:0] and TnBIO [1:0] must be set to "11" and can not be changed
Rev. 2.50
Co�nter stopped
by CCRA
Pa�se
A�to. set by
TCKn pin
Software
Trigger
TCKn pin
Trigger
P�lse Width set
by (CCRA-CCRB)
ETM – Single Pulse Mode
�65
TnAM [�:0] = �0� TnBM [�:0] = �0;
TnAIO [�:0] = ��� TnBIO [�:0] = ��
Co�nter Stops
Res�me
by software
Software
Software
Software
Trigger
Clear
Trigger
O�tp�t Inverts
when TnAPOL=�
O�tp�t Inverts
when TnBPOL=�
Co�nter Reset
when TnON
ret�rns high
Time
��ne 22� 20��