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Terminal
I/O
4-bit input/output port
Port 7
Each bit can be independently programmable
Other functions:
P70
P71
P72
P73
I/O
Interrupt receiver format vector address
P71-P73
INTO
INT1
INT2
INT3
Port 8
1-bit input port
(P83 is set only in CH04T1002)
I
4-bit input/output port(P84-P87)
P83
I/O
Each bit can be independently programmable
P84-P87
Other function:
AD converter input port
Port options can be specified independently for each bit.
The programmable pull-up resistors are provided depending on whether CMOS or Nch-OD (Nch open
drain ) is selected as the port 1 option.
3. Refer to Table 3 about Functions and Data of the IC's Each Pin.
SERVICE MANUAL
Function Description
INTO input/HOLD release input
/Nch-Tr. output for watchdog timer
INT1 input/HOLD release input
INT2 input/timer 0 event input
INT3 input (noise rejection filter attached
input)/timer 0 event input
Rising
/
Rising
Falling
Falling
yes
yes
no
yes
yes
no
yes
yes
yes
yes
yes
yes
10
H
L
Vector
level
level
yes
yes
03H
yes
yes
0BH
no
no
13H
no
no
1BH
Option
Format
P70
W
P71-P73
V
P83
B
P84-P87
X
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