Z8F64230100ZDF Zilog, Z8F64230100ZDF Datasheet - Page 73
Z8F64230100ZDF
Manufacturer Part Number
Z8F64230100ZDF
Description
ADAPTER ICE Z8 ENCORE 64K 80QFP
Manufacturer
Zilog
Specifications of Z8F64230100ZDF
Module/board Type
*
For Use With/related Products
Z8 Encore!™
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3405
- Current page: 73 of 297
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Table 16. Port A–H Data Direction Sub-Registers
Table 17. Port A–H Alternate Function Sub-Registers
PS019921-0308
BITS
FIELD
RESET
R/W
ADDR
BITS
FIELD
RESET
R/W
ADDR
Caution:
DD7
AF7
7
7
Port A
The Port A–H Data Direction sub-register is accessed through the Port A–H Control regis-
ter by writing 01H to the Port A–H Address register
DD[7:0]—Data Direction
These bits control the direction of the associated port pin. Port Alternate Function opera-
tion overrides the Data Direction register setting.
0 = Output. Data in the Port A–H Output Data register is driven onto the port pin.
1 = Input. The port pin is sampled and the value written into the Port A–H Input Data
Port A
The Port A–H Alternate Function sub-register
Port A–H Control register by writing
Alternate Function sub-registers select the alternate functions for the selected pins. To
determine the alternate function associated with each port pin, see
tions
If 01H in Port A
If 02H in Port A
Do not enable alternate function for GPIO port pins which do not have an as-
Register. The output driver is tri-stated.
sociated alternate function. Failure to follow this guideline may result in un-
predictable operation.
on page 54.
–
–
H Data Direction Sub-Registers
H Alternate Function Sub-Registers
DD6
AF6
6
6
–
–
H Address Register, accessible through Port A
H Address Register, accessible through Port A
DD5
AF5
5
5
DD4
AF4
4
4
02H
R/W
R/W
1
0
to the Port A–H Address register. The Port A–H
DD3
AF3
(Table
3
3
(Table
17) is accessed through the
Z8 Encore! XP
DD2
AF2
16).
2
2
–
–
Product Specification
H Control Register
H Control Register
GPIO Alternate Func-
DD1
AF1
General-Purpose I/O
1
1
®
F64XX Series
DD0
AF0
0
0
59
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