Datasheet

Section 9 I/O Ports
Rev.6.00 Sep. 27, 2007 Page 348 of 1268
REJ09B0220-0600
Table 9.1 Port Functions
Port Description Pins Mode 4
*
1
Mode 5
*
1
Mode 6 Mode 7
Port 1 • 8-bit I/O
port
• Schmitt-
triggered
input
P1
7
/PO
15
/TIOCB
2
/TCLKD
P1
6
/PO
14
/TIOCA
2
P1
5
/PO
13
/TIOCB
1
/TCLKC
P1
4
/PO
12
/TIOCA
1
P1
3
/PO
11
/TIOCD
0
/TCLKB
P1
2
/PO
10
/TIOCC
0
/TCLKA
P1
1
/PO
9
/TIOCB
0
/DACK
1
*
2
P1
0
/PO
8
/TIOCA
0
/DACK
0
*
2
8-bit I/O port also functioning as DMA controller output pins
(DACK
0
and DACK
1
)
*
2
, TPU I/O pins (TCLKA, TCLKB,
TCLKC, TCLKD, TIOCA
0
, TIOCB
0
, TIOCC
0
, TIOCD
0
,
TIOCA
1
, TIOCB
1
, TIOCA
2
, TIOCB
2
) and PPG output pins
(PO
15
to PO
8
)
Port 2 • 8-bit I/O
port
• Schmitt-
triggered
input
P2
7
/PO
7
/TIOCB
5
/TMO
1
P2
6
/PO
6
/TIOCA
5
/TMO
0
P2
5
/PO
5
/TIOCB
4
/TMCI
1
P2
4
/PO
4
/TIOCA
4
/TMRI
1
P2
3
/PO
3
/TIOCD
3
/TMCI
0
P2
2
/PO
2
/TIOCC
3
/TMRI
0
P2
1
/PO
1
/TIOCB
3
P2
0
/PO
0
/TIOCA
3
8-bit I/O port also functioning as TPU I/O pins (TIOCA
3
,
TIOCB
3
, TIOCC
3
, TIOCD
3
, TIOCA
4
, TIOCB
4
, TIOCA
5
,
TIOCB
5
), 8-bit timer (channels 0 and 1) I/O pins (TMRI
0
,
TMCI
0
, TMO
0
, TMRI
1
, TMCI
1
, TMO
1
) and PPG output pins
(PO
7
to PO
0
)
Port 3 • 6-bit I/O
port
• Open-drain
output
capability
P3
5
/SCK
1
P3
4
/SCK
0
P3
3
/RxD
1
P3
2
/RxD
0
P3
1
/TxD
1
P3
0
/TxD
0
6-bit I/O port also functioning as SCI (channel 0 and 1) I/O
pins (TxD
0
, RxD
0
, SCK
0
, TxD
1
, RxD
1
, SCK
1
)
Port 4 • 8-bit input
port
P4
7
/AN
7
/DA
1
P4
6
/AN
6
/DA
0
P4
5
/AN
5
P4
4
/AN
4
P4
3
/AN
3
P4
2
/AN
2
P4
1
/AN
1
P4
0
/AN
0
8-bit input port also functioning as A/D converter analog
inputs (AN
7
to AN
0
) and D/A converter analog outputs (DA
1
and DA
0
)