Lapis ML610Q111, User Manual

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ML610Q111/ML610Q112 User’s Manual
Chapter 18 Port D
FEUL610Q111 18-6
18.2.4 Port D Control Registers 0, 1 (PDCON0, PDCON1)
Address: 0F26AH
Access: R/W
Access size: 8/16 bits
Initial value: 00H
7 6 5 4 3 2 1 0
PDCON0
― ―
PD5C0 PD4C0 PD3C0 PD2C0 PD1C0 PD0C0
R/W
― ―
R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
Address: 0F26BH
Access: R/W
Access size: 8 bits
Initial value: 00H
7 6 5 4 3 2 1 0
PDCON1
― ―
PD5C1 PD4C1 PD3C1 PD2C1 PD1C1 PD0C1
R/W
― ―
R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
PDCON0 and PDCON1 are special function registers (SFRs) to select input/output state of the Port D pin. The
input/output state is different between input mode and output mode. Input or output is selected by using the PDDIR
register.
[Description of Bits]
•
PD5C1-PD0C1, PD5C0-PD0C0 (bits 5 to 0)
The PD5C1 to PD0C1 pins and the PD5C0 to PD0C0 pins are used to select high-impedance output*, P-channel open
drain output, N-channel open drain output, or CMOS output in output mode and to select high-impedance input, input
with a pull-down resistor, or input with a pull-up resistor in input mode.
* High-impedance output means the status that both of H level output and L level output turn off.
Setting of PD0 pin
When output mode is selected
(PD0DIR bit = “0”)
When input mode is selected
(PD0DIR bit = “1”)
PD0C1 PD0C0 Description
0 0 High-impedance output (initial value) High-impedance input
0 1 P-channel open drain output Input with a pull-down resistor
1 0 N-channel open drain output Input with a pull-up resistor
1 1 CMOS output High-impedance input
Setting of PD1 pin
When output mode is selected
(PD1DIR bit = “0”)
When input mode is selected
(PD1DIR bit = “1”)
PD1C1 PD1C0 Description
0 0 High-impedance output (initial value) High-impedance input
0 1 P-channel open drain output Input with a pull-down resistor
1 0 N-channel open drain output Input with a pull-up resistor
1 1 CMOS output High-impedance input
Setting of PD2 pin
When output mode is selected
(PD2DIR bit = “0”)
When input mode is selected
(PD2DIR bit = “1”)
PD2C1 PD2C0 Description
0 0 High-impedance output (initial value) High-impedance input
0 1 P-channel open drain output Input with a pull-down resistor
1 0 N-channel open drain output Input with a pull-up resistor
1 1 CMOS output High-impedance input