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7542 Group
Table 6 I/O port function table
Pin
Name
P0
(LED
)/CAP
I/O port P0
0
00
0
P0
(LED
)/CMP
1
01
0
P0
(LED
)/CMP
2
02
1
P0
(LED
)/TX
3
03
OUT
P0
(LED
)/RxD
4
04
2
P0
(LED
)/TxD
5
05
2
P0
(LED
)/S
6
06
CLK2
P0
(LED
)/S
7
07
RDY2
P1
/RxD
/CAP
I/O port P1
0
1
0
P1
/TxD
1
1
P1
/S
2
CLK1
P1
/S
3
RDY1
P1
/CNTR
4
0
P2
/AN
–P2
/AN
I/O port P2
0
0
7
7
(Note 2)
P3
(LED
)/CAP
I/O port P3
0
10
1
(Note 3)
P3
(LED
)/CMP
1
11
2
P3
(LED
)/CMP
2
12
3
P3
(LED
)/INT
3
13
1
P3
(LED
)
4
14
P3
(LED
)
5
15
P3
(LED
)/INT
6
16
1
P3
(LED
)/INT
7
17
0
Notes 1: Ports P1
, P1
, P1
, P3
0
2
3
2: P2
AN
and P2
/AN
do not exist for the 32-pin version and PWQN0036KA-A package.
6/
6
7
7
3: P3
and P3
/INT
do not exist for the 32-pin version and PWQN0036KA-A package.
5
6
1
Rev.3.02
Oct 31, 2006
REJ03B0006-0302
I/O format
•CMOS compatible
• Capture function input
input level (Note 1)
• Key input interrupt
•CMOS 3-state output
• Compare function output
• Key input interrupt
• Timer X function output
• Key input interrupt
• Serial I/O2 function input/output
• Key input interrupt
• Serial I/O1 function input
• Capture function input
• Serial I/O1 function input/output
• Timer X function input/output
• External interrupt input
• A/D conversion input
• Capture function input
• Compare function output
• External interrupt input
• External interrupt input
, and P3
are CMOS/TTL level.
6
7
Page 20 of 134
Non-port function
Capture/Compare port register
Interrupt edge selection register
Pull-up control register
Port P0P3 drive capacity control register
Capture/Compare port register
Pull-up control register
Port P0P3 drive capacity control register
Timer X mode register
Pull-up control register
Port P0P3 drive capacity control register
Serial I/O2 control register
Interrupt edge selection register
Pull-up control register
Port P0P3 drive capacity control register
Serial I/O2 control register
Pull-up control register
Port P0P3 drive capacity control register
Serial I/O2 control register
Interrupt edge selection register
Pull-up control register
Port P0P3 drive capacity control register
Serial I/O2 control register
Pull-up control register
Port P0P3 drive capacity control register
Serial I/O1 control register
Capture/Compare port register
Port P1P3 control register
Serial I/O1 control register
Serial I/O1 control register
Port P1P3 control register
Serial I/O1 control register
Port P1P3 control register
Timer X mode register
A/D control register
Capture/Compare port register
Pull-up control register
Port P0P3 drive capacity control register
Capture/Compare port register
Pull-up control register
Port P0P3 drive capacity control register
Interrupt edge selection register
Pull-up control register
Port P0P3 drive capacity control register
Pull-up control register
Port P0P3 drive capacity control register
Interrupt edge selection register
Pull-up control register
Port P0P3 drive capacity control register
Port P1P3 control register
SFRs related each pin
Diagram
No.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
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