Datasheet

Section 8 I/O Ports
Rev. 2.00 Sep. 28, 2009 Page 230 of 870
REJ09B0429-0200
8.10.5 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 8.6 summarizes the input pull-up MOS states.
Table 8.6 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.