Port Control Register 7(Pcr7); Port Data Register 7(Pdr7) - Hitachi H8/3672 Series Hardware Manual

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.
Bit Bit Name Initial Value R/W
− −
7
6 PCR76 0
5 PCR75 0
4 PCR74 0
− −
3
− −
2
− −
1
− −
0
9.4.2

Port Data Register 7(PDR7)

PDR7 is a general I/O port data register of port 7.
Bit Bit Name Initial Value R/W
−
7 1
6 P76 0
5 P75 0
4 P74 0
−
3 1
−
2 1
−
1 1
−
0 1
Rev. 1.0, 03/01, page 102 of 280
Description
−
Reserved
W Setting a PCR7 bit to 1 makes the corresponding pin an
output port, while clearing the bit to 0 makes the pin an
W
input port. Note that the TCSRV setting of the timer V has
W
priority for deciding input/output direction of the P76/TMOV
pin.
−
Reserved
−
−
−
Description
−
Reserved
This bit is always read as 1 and cannot be modified.
R/W PDR7 stores output data for port 7 pins.
R/W PDR7 is read while PCR7 bits are set to 1, the value stored
in PDR7 is read. If PDR7 is read while PCR7 bits are
R/W
cleared to 0, the pin states are read regardless of the value
stored in PDR7.
−
Reserved
−
These bits are always read as 1 and cannot be modified.
−
−