Z8F0830HH020SG Datasheet, PDF (65/257 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore!^® F0830 Series
Product Specification
47
Port A–D Alternate Function Set 1 Subregisters
The Port A–D Alternate Function Set 1 Subregister, shown in Table 27, is accessed
through the Port A–D Control Register by writing 07H to the Port A–D Address Register.
The Alternate Function Set 1 subregisters select the alternate function available at a port
pin. Alternate functions selected by setting or clearing bits in this register are defined in
the GPIO Alternate Functions section on page 34.
Note: Alternate function selection on the port pins must also be enabled, as described in the Port
A–D Alternate Function Subregisters section on page 42.
Table 27. Port A–D Alternate Function Set 1 Subregisters (PxAFS1)
Bit
Field
RESET
R/W
Address
7
6
5
4
3
2
1
0
PAFS17 PAFS16 PAFS15 PAFS14 PAFS13 PAFS12 PAFS11 PAFS10
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
If 07H in Port A–D Address Register, accessible through the Port A–D Control Register
Bit
Description
[7:0]
PAFS1x
Port Alternate Function Set 1
0 = Port Alternate function selected as defined in Table 16 in GPIO Alternate Functions sec-
tion.
1 = Port Alternate function selected as defined in Table 16 in GPIO Alternate Functions sec-
tion.
Note: x indicates the specific GPIO port pin number (7–0).
PS025113-1212
GPIO Control Register Definitions