Port D Register (Portd); Port D Pull-Up Mos Control Register (Pdpcr); Pin Functions - Hitachi H8S/2215 Series Hardware Manual

9.9.3

Port D Register (PORTD)

PORTD shows port D pin states.
Bit Bit Name Initial Value
−*
7 PD7
−*
6 PD6
−*
5 PD5
−*
4 PD4
−*
3 PD3
−*
2 PD2
−*
1 PD1
−*
0 PD0
Note: * Determined by the states of pins PD7 to PD0.
9.9.4

Port D Pull-up MOS Control Register (PDPCR)

PDPCR controls on/off states of the input pull-up MOS of port D.
Bit Bit Name Initial Value
7 PD7PCR 0
6 PD6PCR 0
5 PD5PCR 0
4 PD4PCR 0
3 PD3PCR 0
2 PD2PCR 0
1 PD1PCR 0
0 PD0PCR 0
9.9.5

Pin Functions

Port D pins also functions as data bus (D15 to D8) I/O. The correspondence between the register
specification and the pin functions in shown below.
Rev. 3.0, 10/02, page 248 of 686
R/W Description
R If a port D read is performed while PDDDR bits are set to
1, the PDDR values are read. If a port D read is
R
performed while PDDDR bits are cleared to 0, the pin
R
states are read.
R
R
R
R
R
R/W Description
R/W When the pin is in its input state, the input pull-up MOS of
the input pin is on when the corresponding bit is set to 1.
R/W
R/W
R/W
R/W
R/W
R/W
R/W