Z8F082A28100KIT ZILOG [Zilog, Inc.], Z8F082A28100KIT Datasheet - Page 58

• Manufacturer Part Number: Z8F082A28100KIT
• Description: Z8 Encore XP-R F08xA Series with eXtended Peripherals
• Manufacturer: ZILOG [Zilog, Inc.]

BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
PS024705-0405
PHDE7
POC7
R/W
R/W
If 03H in Port A–D Address Register, accessible through the Port A–D Control Register
If 04H in Port A–D Address Register, accessible through the Port A–D Control Register
0
0
7
7
1 = The alternate function selected through Alternate Function Set sub-registers is
enabled. Port pin operation is controlled by the alternate function.
Port A–D Output Control Sub-Registers
The Port A–D Output Control sub-register (Table 20) is accessed through the Port A–D
Control register by writing
Port A–D Output Control sub-registers to 1 configures the specified port pins for open-
drain operation. These sub-registers affect the pins directly and, as a result, alternate func-
tions are also affected.
POC[7:0]—Port Output Control
These bits function independently of the alternate function bit and always disable the
drains if set to 1.
0 = The drains are enabled for any output mode (unless overridden by the alternate func-
tion).
1 = The drain of the associated pin is disabled (open-drain mode).
Port A–D High Drive Enable Sub-Registers
The Port A–D High Drive Enable sub-register (Table 21) is accessed through the Port
A–D Control register by writing
the Port A–D High Drive Enable sub-registers to 1 configures the specified port pins for
high current output drive operation. The Port A–D High Drive Enable sub-register affects
the pins directly and, as a result, alternate functions are also affected.
Table 21. Port A–D High Drive Enable Sub-Registers (PxHDE)
Table 20. Port A–D Output Control Sub-Registers (PxOC)
PHDE6
POC6
R/W
R/W
6
0
6
0
PHDE5
POC5
R/W
R/W
5
0
5
0
03H
P R E L I M I N A R Y
to the Port A–D Address register. Setting the bits in the
PHDE4
04H
POC4
R/W
R/W
0
0
4
4
to the Port A–D Address register. Setting the bits in
PHDE3
POC3
R/W
R/W
3
0
3
0
Z8 Encore! XP
PHDE2
POC2
R/W
R/W
0
0
2
2
Product Specification
PHDE1
POC1
R/W
R/W
General-Purpose I/O
1
0
1
0
®
F08xA Series
PHDE0
POC0
R/W
R/W
0
0
0
0
40