Z8F1601 Datasheet, PDF (55/246 Pages) Zilog, Inc. – Z8 Encore Microcontrollers with Flash Memory and 10-Bit A/D Converter

Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!^®
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Table 12. GPIO Port Registers and Sub-Registers
Port Register Mnemonic Port Register Name
PxADDR
Port A-H Address Register
(Selects sub-registers)
PxCTL
Port A-H Control Register
(Provides access to sub-registers)
PxIN
Port A-H Input Data Register
PxOUT
Port A-H Output Data Register
Port Sub-Register Mnemonic Port Register Name
PxDD
Data Direction
PxAF
Alternate Function
PxOC
Output Control (Open-Drain)
PxHDE
High Drive Enable
PxSMRE
STOP Mode Recovery Source
Enable
Port A-H Address Registers
The Port A-H Address registers select the GPIO Port functionality accessible through the
Port A-H Control registers. The Port A-H Address and Control registers combine to pro-
vide access to all GPIO Port control (Table 13).
Table 13. Port A-H GPIO Address Registers (PxADDR)
BITS
7
6
5
4
3
2
1
0
FIELD
PADDR[7:0]
RESET
00H
R/W
R/W
ADDR
FD0H, FD4H, FD8H, FDCH, FE0H, FE4H, FE8H, FECH
PS017610-0404
General-Purpose I/O