Holtek HT66F20-1 Manual page 79

HT66F20-1/HT66F30-1/HT68F20-1/HT68F30-1
Flash MCU with EEPROM
T M 0
( C T M )
T M 1
( S T M )
Note: 1. The I/O register data bits shown are used for TM output inversion control.
2. In the Capture Input Mode, the TM pin control register must never enable more than one
TM input.
Rev. 1.40
P A 0 O u t p u t F u n c t i o n
O u t p u t
T C K I n p u t
P A 1 O u t p u t F u n c t i o n
0
1
P A 1
P C 0 O u t p u t F u n c t i o n
O u t p u t
0
1
P C 0
C a p t u r e I n p u t
T C K I n p u t
HT66F20-1/HT68F20-1 TM Function Pin Control Block Diagram
79
0
P A 0 / T P 0 _ 0
1
T 0 C P 0
P A 2 / T C K 0
0
P A 1 / T P 1 _ 0
1
T 1 C P 0
0
P C 0 / T P 1 _ 1
1
T 1 C P 1
1
0
T 1 C P 1
1
0
T 1 C P 0
P A 4 / T C K 1
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