Z8F1680SH020SG Datasheet, PDF (89/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
64
7.11.9. Port A–E Alternate Function Set 1 Subregisters
The Port A–E Alternate Function Set1 Subregister, shown in Table 29, is accessed through
the Port A–E Control Register by writing 07H to the Port A–E 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 of this register are defined in the
GPIO Alternate Functions section on page 47.
Note: Alternate function selection on the port pins must also be enabled as described in the Port
A–E Alternate Function Subregisters section on page 61.
Table 29. Port A–E Alternate Function Set 1 Subregisters (PxAFS1)
Bits
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–E Address Register, accessible through the Port A–E Control Register
Bit
[7:0]
PAFS1
Description
Port Alternate Function Set 1
0 = Port Alternate Function selected, as defined in the GPIO Alternate Functions section on
page 47.
1 = Port Alternate Function selected, as defined in the GPIO Alternate Functions section on
page 47.
7.11.10. Port A–E Alternate Function Set 2 Subregisters
The Port A–E Alternate Function Set 2 Subregister, shown in Table 30, is accessed
through the Port A–E Control Register by writing 08H to the Port A–E Address Register.
The Alternate Function Set 2 subregisters select the alternate function available at a port
pin. Alternate Functions selected by setting or clearing bits of this register are defined in
the GPIO Alternate Functions section on page 47.
Note: Alternate function selection on port pins must also be enabled as described in the Port A–
E Alternate Function Subregisters section on page 61.
PS025015-1212
PRELIMINARY
General-Purpose Input/Output