Datasheet

Section 8 I/O Ports
Rev.7.00 Dec. 24, 2008 Page 238 of 698
REJ09B0074-0700
Table 8.34 PA2 Pin Function
RE in SCR_2 0 1
PA2DDR 0 1 ⎯
Pin Function PA2 input pin PA2 output pin RxD2 input pin
Table 8.35 PA1 Pin Function
TE in SCR_2 0 1
PA1DDR 0 1 ⎯
Pin Function PA1 input pin PA1 output pin TxD2 output pin
8.6.7 Port A Input Pull-Up MOS States
The port A has an on-chip input pull-up MOS function that can be controlled by software. The
input pull-up MOS can be specified as the on or off state for individual bits.
Table 8.36 summarizes the input pull-up MOS states.
Table 8.36 Input Pull-Up MOS States (Port A)
Pins
Power-On
Reset
Hardware
Standby
Mode
Manual
Reset
Software
Standby
Mode
In Other
Operations
Address output, port
output, SCI output
Off Off
Port input, SCI input On/Off
Legend:
Off: Input pull-up MOS is always off.
On/Off: On when PADDR = 0 and PAPCR = 1; otherwise off.