Datasheet

Section 7 I/O Ports
Rev. 3.00 Sep. 28, 2009 Page 154 of 910
REJ09B0350-0300
7.2 Output Buffer Control
This section describes the output priority of each pin.
The name of each peripheral module pin is followed by “_OE”. This (for example: TIOCA4_OE)
indicates whether the output of the corresponding function is valid (1) or if another setting is
specified (0). Table 7.4 lists each port output signal's valid setting. For details on the
corresponding output signals, see the register description of each peripheral module.
7.2.1 Port 1
(1) P17 to P10
The pin function is switched as shown below according to the P1nDDR bit setting.
Setting
I/O Port
Module Name Pin Function
P1nDDR
I/O port P1n output 1
P1n input
(initial setting)
0
(n = 7 to 0)
7.2.2 Port 2
(1) P27 to P20
The pin function is switched as shown below according to the P2nDDR bit setting.
Setting
I/O Port
Module Name Pin Function
P2nDDR
I/O port P2n output 1
P2n input
(initial setting)
0
(n = 7 to 0)