Z8FMC16100 Datasheet, PDF (62/402 Pages) Zilog, Inc. – Z8 Encore-R Motor Control Flash MCUs

Z8 Encore!^® Motor Control Flash MCUs
Product Specification
40
Table 14. GPIO Port Registers and Subregisters
Port Register Mnemonic
PxADDR
PxCTL
PxIN
PxOUT
Port Register Name
Port A–C Address Register—selects subregisters.
Port A–C Control Register—provides access to
subregisters.
Port A–C Input Data Register.
Port A–C Output Data Register.
Port Subregister Mnemonic
PxDD
PxAF0
PxAF1
PxOC
Port Register Name
Data Direction
Alternate Function 0
Alternate Function 1—Ports A and B only.
Output Control (open-drain).
PxHDE
PxSMRE
PxPUE
High Drive Enable.
Stop-Mode Recovery Source Enable.
Pull-Up Enable.
PxIRQES
Interrupt Edge Select—Ports A and C only.
IRQPSEL
Interrupt Port Select—Port A only.
Port A-C Address Registers
The Port A–C Address registers select the GPIO port functionality accessible through the
Port A–C Control registers. The Port A–C Address and Control registers combine to pro-
vide access to all GPIO port control. See Table 15.
Table 15. Port A–C GPIO Address Registers (PxADDR)
BITS
FIELD
RESET
R/W
ADDR
7
6
5
4
3
2
1
0
PADDR[7:0]
00H
R/W
FD0H, FD4H, FD8H
Table 16 lists the Port Control subregisters that are accessible via the Port A–C Control
registers.
General-Purpose I/O
PRELIMINARY
PS024604-1005