z8fmc16100 ZiLOG Semiconductor, z8fmc16100 Datasheet - Page 52

• Manufacturer Part Number: z8fmc16100
• Description: Z8 Encore Motor Control Flash Mcus
• Manufacturer: ZiLOG Semiconductor

Table 17. Port A–C Control Registers (PxCTL)
Table 18. Port A–C Data Direction Subregisters
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
PS024611-0408
Port A–C Control Registers
DD7
R/W
7
7
1
If 01H in Port A–C Address register, accessible through the Port A-C Control register
The Port A–C Control registers (PxCTL) set the GPIO port operation. The value in the
corresponding Port A–C Address register determines the control subregisters accessible
using the Port A–C Control registers
to all subregisters that configure GPIO port operation.
Port A–C Data Direction Subregisters
The Port A–C Data Direction subregisters are accessed through the Port A–C Control
registers by writing
In each of these three data direction subregisters, bits [7:0] control the direction of the
associated port pin. Port Alternate Function operation overrides the Data Direction register
setting.
If the value of bit is 0, the direction is output, and data in the Port A–C Output Data
registers is driven onto the port pin.
If the value of bit is 1, the direction is input. The port pin is sampled, the value is written
into the Port A–C Input Data registers, and the output driver is tristated.
DD6
R/W
6
6
1
01h
DD5
R/W
5
5
1
to the Port A–C Address registers. See
FD1H, FD5H, FD9H
DD4
R/W
4
4
1
(Table
PCTL
R/W
00H
17). The Port Control registers provide access
DD3
R/W
3
3
1
Z8FMC16100 Series Flash MCU
DD2
R/W
2
2
1
Table
Product Specification
Port A–C Control Registers
18.
DD1
R/W
1
1
1
DD0
R/W
0
0
1
40