Port 4 Data Register (P4Dr); Port 4 Register (Port4) - Renesas H8S/2437 Hardware Manual

7.5.2

Port 4 Data Register (P4DR)

P4DR stores output data for the port 4 pins.
Bit Bit Name
7 P47DR
6 P46DR
5 P45DR
4 P44DR
3 P43DR
2 P42DR
1 P41DR
0 P40DR
7.5.3

Port 4 Register (PORT4)

PORT4 reflects the pin state in port 4 and cannot be modified.
Bit Bit Name
7 P47
6 P46
5 P45
4 P44
3 P43
2 P42
1 P41
0 P40
Note: * Determined by the states of the P47 to P40 pins.
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
Initial Value R/W
*
R
*
R
*
R
*
R
*
R
*
R
*
R
*
R
Description
P4DR stores output data for the port 4 pins that are
used as the general output ports.
Description
When this register is read, the bit that is set in
P4DDR is read as the value of P4DR. The bit
that is cleared in P4DDR is read as the pin
state.
Rev. 1.00, 09/03, page 163 of 704