8.2.3
Pin Functions
Table 8-3 shows the port 1 pin functions.
Table 8-3 Port 1 Pin Functions
Pin
Pin Functions and Selection Method
P17/IRQ3/TMIF
The pin function depends on bit IRQ3 in PMR1, bits CKSL2 to CKSL0 in TCRF,
and bit PCR17 in PCR1.
IRQ3
PCR17
0
1
0
1
*
CKSL2 to CKSL0
Pin function
*
Not 0**
0**
P17 input pin P17 output pin IRQ3 input pin IRQ3/TMIF
input pin
Note: When this pin is used as the TMIF input pin, clear bit IEN3 to 0 in IENR1
to disable the IRQ3 interrupt.
P16/IRQ2
The pin function depends on bits IRQ2 in PMR1 and bit PCR16 in PCR1.
IRQ2
PCR16
0
1
0
1
*
Pin function
P16 input pin P16 output pin
IRQ2 input pin
P15/IRQ1
TMIC
The pin function depends on bit IRQ1 in PMR1, bits TMC2 to TMC0 in TMC, and
bit PCR15 in PCR1.
IRQ1
PCR15
0
1
0
1
*
TMC2 to TMC0
Pin function
*
Not 111
111
P15 input pin P15 output pin IRQ1 input pin IRQ1/TMIC
input pin
Note: When this pin is used as the TMIC input pin, clear bit IEN1 to 0 in IENR1
to disable the IRQ1 interrupt.
P14/IRQ4
ADTRG
The pin function depends on bit IRQ4 in PMR1, bit TRGE in AMR, and bit PCR14
in PCR1.
IRQ4
PCR14
0
1
0
1
*
TRGE
*
0
1
Pin function
P14 input pin P14 output pin IRQ4 input pin IRQ4/ADTRG
input pin
Note: When this pin is used as the ADTRG input pin, clear bit IEN4 to 0 in
IENR1 to disable the IRQ4 interrupt.
137
ETC [ ETC ]
