Z8F082ASH020SC Datasheet, PDF (60/244 Pages) Zilog, Inc. – Z8 Encore XP-R F08xA Series with eXtended Peripherals

Z8 Encore! XP^® F08xA Series
Product Specification
42
PPUE[7:0]—Port Pull-up Enabled
0 = The weak pull-up on the Port pin is disabled.
1 = The weak pull-up on the Port pin is enabled.
Note:
Port A–D Alternate Function Set 1 Sub-Registers
The Port A–D Alternate Function Set1 sub-register (Table 24) is accessed through the Port
A–D Control register by writing 07H to the Port A–D Address register. The Alternate
Function Set 1 sub-registers selects the alternate function available at a port pin. Alternate
Functions selected by setting or clearing bits of this register are defined in “GPIO Alternate
Functions” on page 32.
Alternate function selection on port pins must also be enabled as decribed in “Port A–D
Alternate Function Sub-Registers” on page 39.
Table 24. Port A–D Alternate Function Set 1 Sub-Registers (PxAFS1)
BITS
FIELD
RESET
R/W
ADDR
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
PAFS1[7:0]—Port Alternate Function Set 1
0 = Port Alternate Function selected as defined in Table 13 in the GPIO Alternate Functions
section.
1 = Port Alternate Function selected as defined in Table 13 in the GPIO Alternate Functions
section.
Note:
Port A–D Alternate Function Set 2 Sub-Registers
The Port A–D Alternate Function Set 2 sub-register (Table 25) is accessed through the
Port A–D Control register by writing 08H to the Port A–D Address register. The Alternate
Function Set 2 sub-registers selects the alternate function available at a port pin. Alternate
Functions selected by setting or clearing bits of this register is defined in Table 13 in the
section “GPIO Alternate Functions” on page 32.
Alternate function selection on port pins must also be enabled as decribed in “Port A–D
Alternate Function Sub-Registers” on page 39.
BITS
FIELD
Table 25. Port A–D Alternate Function Set 2 Sub-Registers (PxAFS2)
7
6
5
4
3
2
1
0
PAFS27 PAFS26 PAFS25 PAFS24 PAFS23 PAFS22 PAFS21 PAFS20
PS024705-0405
PRELIMINARY
General-Purpose I/O