Datasheet

Section 7 I/O Ports
Rev. 3.00 Sep. 28, 2009 Page 136 of 910
REJ09B0350-0300
Table 7.1 Port Functions
Function
Port Description Bit I/O Input Output
Input Pull-
up MOS
Function
LED Drive
Capability
(5 mA Sink
Current)
On-Chip
Noise
Canceller
7 P17 ⎯ ⎯
6 P16 ⎯ ⎯
5 P15 ⎯ ⎯
4 P14 ⎯ ⎯
3 P13 ⎯ ⎯
2 P12 ⎯ ⎯
1 P11 ⎯ ⎯
Port 1
General I/O
port
0 P10 ⎯ ⎯
O O ⎯
7 P27 ⎯ ⎯
6 P26 ⎯ ⎯
5 P25 ⎯ ⎯
4 P24 ⎯ ⎯
3 P23 ⎯ ⎯
2 P22 ⎯ ⎯
1 P21 ⎯ ⎯
Port 2 General I/O
port
0 P20 ⎯ ⎯
O O ⎯
7 P37/SERIRQ ⎯ ⎯
6 P36 LCLK ⎯
5 P35 LRESET ⎯
4 P34 LFRAME ⎯
3 P33/LAD3 ⎯ ⎯
2 P32/LAD2 ⎯ ⎯
Port 3 General I/O
port also
functioning as
LPC
input/output
1 P31/LAD1 ⎯ ⎯
O O ⎯
0 P30/LAD0 ⎯ ⎯