D12320VF25IV Datasheet, PDF (453/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.11.4 MOS Input Pull-Up Function
Port D has a built-in MOS input pull-up function that can be controlled by software. This MOS
input pull-up function can be used in mode 7, and can be specified as on or off on an individual bit
basis.
When a PDDDR bit is cleared to 0 in mode 7, setting the corresponding PDPCR bit to 1 turns on
the MOS input pull-up for that pin.
The MOS input pull-up function is in the off state after a reset, and in hardware standby mode.
The prior state is retained in software standby mode.
Table 9.21 summarizes the MOS input pull-up states.
Table 9.21 MOS Input Pull-Up States (Port D)
Modes
Reset
Hardware
Standby Mode
Software
Standby Mode
4 to 6
Off
Off
Off
7
On/off
Legend:
Off: MOS input pull-up is always off.
On/off: On when PDDDR = 0 and PDPCR = 1; otherwise off.
In Other
Operations
Off
On/off
Rev.6.00 Sep. 27, 2007 Page 421 of 1268
REJ09B0220-0600