Datasheet

Section 8 I/O Ports
Rev.7.00 Dec. 24, 2008 Page 252 of 698
REJ09B0074-0700
8.9.4 Port D Pull-Up MOS Control Register (PDPCR)
PDPCR controls the on/off state of the port D input pull-up MOS.
Bit Bit Name Initial Value R/W Description
7
6
5
4
3
2
1
0
PD7PCR
PD6PCR
PD5PCR
PD4PCR
PD3PCR
PD2PCR
PD1PCR
PD0PCR
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
When a pin functions as an input port, setting the
corresponding bit to 1 turns on the input pull-up MOS for
that pin.
8.9.5 Pin Functions
Port D pins also function as data bus (D15 to D8) I/O pins. The correspondence between the
register specification and the pin functions is shown below.
Table 8.55 PD7 Pin Function
Operating Mode Modes 4 to 6 Mode 7
PD7DDR ⎯ 0 1
Pin Function D15 input/output pin PD7 input pin PD7 output pin
Table 8.56 PD6 Pin Function
Operating Mode Modes 4 to 6 Mode 7
PD6DDR ⎯ 0 1
Pin Function D14 input/output pin PD6 input pin PD6 output pin
Table 8.57 PD5 Pin Function
Operating Mode Modes 4 to 6 Mode 7
PD5DDR ⎯ 0 1
Pin Function D13 input/output pin PD5 input pin PD5 output pin