Z8F4822AR020SG Datasheet, PDF (56/323 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F64xx Series
Product Specification
36
General-Purpose I/O
The Z8 Encore! XP F64xx Series products support a maximum of seven 8-bit ports (ports
A–G) and one 4-bit port (Port H) for general-purpose input/output (GPIO) operations.
Each port consists of control and data registers. The GPIO control registers are used to
determine data direction, open-drain, output drive current and alternate pin functions.
Each port pin is individually programmable. All ports (except B and H) support 5 V-toler-
ant inputs.
GPIO Port Availability By Device
Table 11 lists the port pins available with each device and package type.
Table 11. Port Availability by Device and Package Type
Device
Z8X1621
Z8X1622
Z8X2421
Z8X2422
Z8X3221
Z8X3222
Z8X4821
Z8X4822
Z8X4823
Z8X6421
Z8X6422
Z8X6423
Packages
40-pin
44-pin
64- and 68-pin
40-pin
44-pin
64- and 68-pin
40-pin
44-pin
64- and 68-pin
40-pin
44-pin
64- and 68-pin
80-pin
40-pin
44-pin
64- and 68-pin
80-pin
Port A
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
Port B
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
Port C
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
[7:0]
Port D
[6:3,1:0]
[6:0]
[7:0]
[6:3,1:0]
[6:0]
[7:0]
[6:3,1:0]
[6:0]
[7:0]
[6:3,1:0]
[6:0]
[7:0]
[7:0]
[6:3,1:0]
[6:0]
[7:0]
[7:0]
Port E
–
–
[7:0]
–
–
[7:0]
–
–
[7:0]
–
–
[7:0]
[7:0]
–
–
[7:0]
[7:0]
Port F
–
–
[7]
–
–
[7]
–
–
[7]
–
–
[7]
[7:0]
–
–
[7]
[7:0]
Port G
–
–
[3]
–
–
[3]
–
–
[3]
–
–
[3]
[7:0]
–
–
[3]
[7:0]
Port H
–
–
[3:0]
–
–
[3:0]
–
–
[3:0]
–
–
[3:0]
[3:0]
–
–
[3:0]
[3:0]
PS019924-0113
PRELIMINARY
General-Purpose I/O