Advertisement
Section 8 I/O Ports
(3)
Port 6 Pull-Up MOS Control Register (P6PCR)
P6PCR controls the port 6 built-in input pull-up MOSs.
Bit
Bit Name
7
P67PCR
6
P66PCR
5
P65PCR
4
P64PCR
3
P23PCR
2
P62PCR
1
P61PCR
0
P60PCR
(4)
Pin Functions
(a)
Normal Extended Mode
• 16-bit bus mode
Port pins 63 to 60 are automatically set to function as bidirectional data bus pins.
• 8-bit bus mode
The operation is the same as that in single-chip mode.
(b)
Address-Data Multiplex Extended Mode
The operation is the same as that in single-chip mode.
Rev. 1.00 Mar. 12, 2008 Page 304 of 1178
REJ09B0403-0100
Initial Value
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
Description
•
Normal extended mode (16-bit bus)
This register has no effect on operation.
•
Other modes
When the pins are in the input state, the
corresponding input pull-up MOS is turned on
when a P6PCR bit is set to 1.
Advertisement
