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Rev. 5.00, 09/03, page 572 of 760
18.3.3 Port C Control Register (PCCR)
Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
PC7
MD1
PC7
MD0
PC6
MD1
PC6
MD0
PC5
MD1
PC5
MD0
PC4
MD1
PC4
MD0
PC3
MD1
PC3
MD0
PC2
MD1
PC2
MD0
PC1
MD1
PC1
MD0
PC0
MD1
PC0
MD0
Initial value:1010101010101010
R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
The port C control register (PCCR) is a 16-bit readable/writable register that selects the pin
functions. PCCR is initialized to H'AAAA by a power-on reset, but is not initialized by a manual
reset, in standby mode, or in sleep mode.
Bits 15 and 14—PC7 Mode 1 and 0 (PC7MD1, PC7MD0)
Bits 13 and 12—PB6 Mode 1 and 0 (PC6MD1, PC6MD0)
Bits 11 and 10—PC5 Mode 1 and 0 (PC5MD1, PC5MD0)
Bits 9 and 8—PC4 Mode 1 and 0 (PC4MD1, PC4MD0)
Bits 7 and 6—PC3 Mode 1 and 0 (PC3MD1, PC3MD0)
Bits 5 and 4—PC2 Mode 1 and 0 (PC2MD1, PC2MD0)
Bits 3 and 2—PC1 Mode 1 and 0 (PC1MD1, PC1MD0)
Bits 1 and 0—PC0 Mode 1 and 0 (PC0MD1, PC0MD0)
These bits select the pin functions and perform input pull-up MOS control.
Bit (2n + 1) Bit 2n
PCnMD1 PCnMD0 Pin Function
0 0 Other function (see table 18.1)
0 1 Port output
1 0 Port input (Pull-up MOS: on) (Initial value)
1 1 Port input (Pull-up MOS: off)
(n = 0 to 7)