Datasheet

Section 8 I/O Ports
Rev. 6.00 Aug 04, 2006 page 210 of 680
REJ09B0145-0600
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
7
/IRQ
3
/TMIF The pin function depends on bit IRQ3 in PMR1, bits CKSL2 to CKSL0 in TCRF,
and bit PCR1
7
in PCR1.
IRQ3 0 1
PCR1
7
01 *
CKSL2 to CKSL0 * Not 0** 0**
Pin function P1
7
input pin P1
7
output pin
I
RQ
3
input pin IRQ
3
/TMIF
input pin
Note: When this pin is used as the TMIF input pin, clear bit IEN3 to 0 in IENR1
to disable the IRQ
3
interrupt.
P1
6
/IRQ
2
The pin function depends on bits IRQ2 in PMR1 and bit PCR1
6
in PCR1.
IRQ2 0 1
PCR1
6
01 *
Pin function P1
6
input pin P1
6
output pin IRQ
2
input pin
P1
5
/IRQ
1
TMIC
The pin function depends on bit IRQ1 in PMR1, bits TMC2 to TMC0 in TMC, and
bit PCR1
5
in PCR1.
IRQ1 0 1
PCR1
5
01 *
TMC2 to TMC0 * Not 111 111
Pin function P1
5
input pin P1
5
output pin IRQ
1
inpu
t pin
IRQ
1
/TMIC
input pin
Note: When this pin is used as the TMIC input pin, clear bit IEN1 to 0 in IENR1
to disable the IRQ
1
interrupt.
P1
4
/IRQ
4
ADTRG
The pin function depends on bit IRQ4 in PMR1, bit TRGE in AMR, and bit PCR1
4
in PCR1.
IRQ4 0 1
PCR1
4
01 *
TRGE * 01
Pin function P1
4
input pin P1
4
output pin
I
RQ
4
input pin IRQ
4
/ADTR
G input pin
Note: When this pin is used as the ADTRG input pin, clear bit IEN4 to 0 in
IENR1 to disable the IRQ
4
interrupt.