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• PD0/LSCI
The pin function is switched as shown below according to the combination of the LSCIE bit in
HICR0 of the LPC and the PD0DDR bit.
LSCIE
PD0DDR
Pin function
(5)
Input Pull-Up MOS
Port pins D5 to D0 have 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.
PDnDDR
PDnODR
PDn pull-up MOS
[Legend]
n = 5 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 8.16 summarizes the input pull-up MOS states.
Table 8.16 Port D Input Pull-Up MOS States
Hardware Standby
Reset
Mode
Off
Off
[Legend]
Off:
Always off.
On/Off: On when PDDDR = 0 and PDODR = 1; otherwise off.
0
0
PD0 input pin
1
ON
1
PD0 output pin
0
0
OFF
Software Standby
Mode
On/Off
Rev. 1.00 Mar. 12, 2008 Page 345 of 1178
Section 8 I/O Ports
1
0
LSCI output pin
1
X
OFF
In Other Operations
On/Off
REJ09B0403-0100
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