Datasheet

Rev. 3.00, 03/04, page 242 of 830
8.13.5 Input Pull-Up MOS
Ports D5 to D0 have a built-in input pull-up MOS 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.
PDnDDR 0 1
PDnODR 1 0 
PDn pull-up
MOS
ON OFF OFF
[Legend]
n = 5 to 0
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 Port D 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 PDDDR = 0 and PDODR = 1; otherwise off.