Datasheet

Section 8 I/O Ports
Rev. 2.00 Aug. 20, 2008 Page 247 of 1198
REJ09B0403-0200
(5) Input Pull-Up MOS
Port A has built-in input pull-up MOSs that can be controlled by software. This input pull-up
MOS can be used in any operating mode, and can be specified as on or off on a bit-by-bit basis.
PAnDDR 0 1
PAnODR 1 0 X
PAn pull-up MOS ON OFF OFF
[Legend] n = 7 to 0, X: Don't care.
The input pull-up MOS is in the off state after a reset and in hardware standby mode. The prior
state is retained in software standby mode.
Table 8.7 summarizes the input pull-up MOS states.
Table 8.7 Input Pull-Up MOS States
Reset
Hardware Standby
Mode
Software Standby
Mode
In Other Operations
Off Off On/Off On/Off
[Legend]
Off: Always off.
On/Off: On when PADDR = 0 and PAODR = 1; otherwise off.