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Section 8 I/O Ports
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
P1
/IRQ
/TMIF
The pin function depends on bit IRQ3 in PMR1, bits CKSL2 to CKSL0 in TCRF,
7
3
and bit PCR1
CKSL2 to CKSL0
Note: When this pin is used as the TMIF input pin, clear bit IEN3 to 0 in IENR1
P1
/IRQ
The pin function depends on bits IRQ2 in PMR1 and bit PCR1
6
2
P1
/IRQ
The pin function depends on bit IRQ1 in PMR1, bits TMC2 to TMC0 in TMC, and
5
1
TMIC
bit PCR1
TMC2 to TMC0
Note: When this pin is used as the TMIC input pin, clear bit IEN1 to 0 in IENR1
P1
/IRQ
The pin function depends on bit IRQ4 in PMR1, bit TRGE in AMR, and bit PCR1
4
4
ADTRG
in PCR1.
Note: When this pin is used as the ADTRG input pin, clear bit IEN4 to 0 in
Rev. 6.00 Aug 04, 2006 page 210 of 680
REJ09B0145-0600
in PCR1.
7
IRQ3
PCR1
7
Pin function
P1
7
to disable the IRQ
IRQ2
PCR1
6
Pin function
P1
6
in PCR1.
5
IRQ1
PCR1
5
Pin function
P1
5
to disable the IRQ
IRQ4
PCR1
4
TRGE
Pin function
P1
4
IENR1 to disable the IRQ
0
0
1
*
output pin IRQ
input pin
P1
7
interrupt.
3
0
0
1
input pin
P1
output pin
6
0
0
1
*
input pin
P1
output pin
5
interrupt.
1
0
0
1
*
output pin IRQ
input pin
P1
4
interrupt.
4
1
*
Not 0**
0**
IRQ
input pin
/TMIF
3
3
input pin
in PCR1.
6
1
*
IRQ
input pin
2
1
*
Not 111
111
IRQ
IRQ
inpu
/TMIC
1
1
input pin
t pin
1
*
0
1
input pin IRQ
/ADTR
4
4
G input pin
4
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