TMP89FM42 Datasheet, PDF (112/408 Pages) Toshiba Semiconductor – 8 Bit Microcontroller

8. I/O Ports
8.3 I/O Port Registers
TMP89FM42
8.3.2 Port P1 (P13 to P10)
Port P1 is a 4-bit input/output port that can be set to input or output for each bit individually, and is also used
as the external interrupt input, the STOP mode release signal input and the external reset input.
Port P1 contains a programmable pull-up resistor on the VDD side. This pull-up resistor can be used when
the port is used in the input mode.
After reset, pin P10 serves as the external reset input. To use pin P10 as a port, refer to "How to use external
reset input pin as a port".
Table 8-6 Port P1
-
-
-
-
P13
P12
P11
P10
Secondary
-
-
-
-
INT1
INT0
INT5
RESET
function
STOP
RA005
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