HD64F36024FX Datasheet, PDF (137/386 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.4.1 Port Control Register 7 (PCR7)
PCR7 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 7.
Initial
Bit
Bit Name Value R/W Description
7



Reserved
6
PCR76 0
5
PCR75 0
4
PCR74 0
3
PCR73 0
W
Setting a PCR7 bit to 1 makes the corresponding pin an
W
output port, while clearing the bit to 0 makes the pin an
input port. Note that the TCSRV setting of the timer V has
W
priority for deciding input/output direction of the
W
P76/TMOV pin.
2
PCR72 0
W
1
PCR71 0
W
0
PCR70 0
W
9.4.2 Port Data Register 7 (PDR7)
PDR7 is a general I/O port data register of port 7.
Initial
Bit
Bit Name Value R/W Description
7

1

Reserved
This bit is always read as 1.
6
P76
0
R/W PDR7 stores output data for port 7 pins.
5
P75
0
4
P74
0
3
P73
0
2
P72
0
R/W If PDR7 is read while PCR7 bits are set to 1, the value
R/W ^{stored in PDR7 is read. If PDR7 is read while PCR7 bits}
are cleared to 0, the pin states are read regardless of the
R/W _{value stored in PDR7.}
R/W
1
P71
0
R/W
0
P70
0
R/W
Rev. 4.00 Sep. 23, 2005 Page 109 of 354
REJ09B0025-0400