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Port C MOS Pull-Up Control Register (PCPCR)
Bit
:
7
PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR
Initial value :
0
R/W
:
R/W
PCPCR is an 8-bit readable/writable register that controls the MOS input pull-up function
incorporated into port C on an individual bit basis.
In modes 6 and 7, if PCPCR is set to 1 when the port is in the input state in accordance with the
settings of PCDDR, the MOS input pull-up is set to ON.
PCPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its
prior state by a manual reset or in software standby mode.
Port C Open Drain Control Register (PCODR)
Bit
:
7
PC7ODR
Initial value :
0
R/W
:
R/W
PCDDR is an 8-bit read/write register and controls PMOS on/off of each pin (PC7 to PC0) of port
C.
If PCODR is set to 1 by setting AE3 to AE0 in PFCR in mode other than address output mode,
port C pins function as NMOS open drain outputs and when the setting is cleared to 0, the pins
function as CMOS outputs.
PCODR is initialized to H'00 in power-on reset mode or hardware standby mode. PCODR retains
the last state in manual reset mode or software standby mode.
6
5
0
0
R/W
R/W
6
5
PC6ODR
PC5ODR
PC4ODR
0
0
R/W
R/W
4
3
0
0
R/W
R/W
4
3
PC3ODR
PC2ODR
0
0
R/W
R/W
R/W
2
1
0
0
R/W
R/W
R/W
2
1
0
PC1ODR
PC0ODR
0
0
0
R/W
R/W
0
0
487
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