129
Port
Description
Pins
Mode 1
Mode 3
Mode 5
Mode 6
Mode 7
Port 9
• 6-bit I/O
port
P9
5
/SCK
1
/
I R Q
5
,
P9
4
/SCK
0
/
I R Q
4
,
P9
3
/RxD
1
,
P9
2
/RxD
0
,
P9
1
/TxD
1
,
P9
0
/TxD
0
Input and output (SCK
1
, SCK
0
, RxD
1
, RxD
0
, TxD
1
,
TxD
0
) for serial communication interfaces 1 and 0
(SCI0, 1),
IRQ
5
and
IRQ
4
input, and 6-bit generic
input/output
IRQ
1
and
IRQ
0
input
and generic
input/output
Port A
• 8-bit I/O port
• Schmitt inputs
PA
7
/TP
7
/
TIOCB
2
/A
20
Output (TP
7
)
from pro-
grammable
timing
pattern
controller
(TPC), input
or output
(TIOCB
2
) for
16-bit inte-
grated timer
unit (ITU),
and generic
input/ output
Address
output (A
20
)
TPC output
(TP
7
), ITU
input or
output
(TIOCB
2
),
and generic
input/output
Address
output (A
20
)
TPC output
(TP
7
), ITU
input or
output
(TIOCB
2
),
and generic
input/output
PA
6
/TP
6
/
TIOCA
2
/A
21
,
PA
5
/TP
5
/
TIOCB
1
/A
22
,
PA
4
/TP
4
/
TIOCA
1
/A
23
TPC output
(TP
6
to TP
4
),
ITU input or
output
(TIOCA
2
,
TIOCB
1
,
TIOCA
1
),
and generic
input/ output
TPC output
(TP
6
to TP
4
),
ITU input or
output
(TIOCA
2
,
TIOCB
1
,
TIOCA
1
),
address
output (A
23
to A
21
), and
generic
input/output
TPC output
(TP
6
to
TP
4
), ITU
input or
output
(TIOCA
2
,
TIOCB
1
,
TIOCA
1
),
and generic
input/output
TPC output
(TP
6
to
TP
4
), ITU
input or
output
(TIOCA
2
,
TIOCB
1
,
TIOCA
1
),
address
output (A
23
to A
21
), and
generic
input/output
TPC output
(TP
6
to
TP
4
), ITU
input or
output
(TIOCA
2
,
TIOCB
1
,
TIOCA
1
),
and generic
input/output
PA
3
/TP
3
/
TIOCB
0
/
TCLKD,
PA
2
/TP
2
/
TIOCA
0
/
TCLKC,
PA
1
/TP
1
/
TCLKB,
PA
0
/TP
0
/
TCLKA
TPC output (TP
3
to TP
0
), ITU input or output (TCLKD, TCLKC,
TCLKB, TCLKA, TIOCB
0
, TIOCA
0
), and generic input/output