Z8F1601 Datasheet, PDF (51/246 Pages) Zilog, Inc. – Z8 Encore Microcontrollers with Flash Memory and 10-Bit A/D Converter

Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!^®
33
General-Purpose I/O
Overview
The Z8F640x family products support a maximum of seven 8-bit ports (Ports A-G) and
one 4-bit port (Port H) for general-purpose input/output (I/O) operations. Each port con-
tains 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.
GPIO Port Availability By Device
Not all Z8F640x family products support all 8 ports (A-H). Table 10 lists the port pins
available with each device and package type.
Table 10. Port Availability by Device and Package Type
Device
Z8F1601
Z8F1601
Z8F1602
Z8F2401
Z8F2401
Z8F2402
Z8F3201
Z8F3201
Z8F3202
Z8F4801
Z8F4801
Z8F4802
Z8F4803
Z8F6401
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
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]
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]
Port C
[6:0]
[7:0]
[7:0]
[6:0]
[7:0]
[7:0]
[6:0]
[7:0]
[7:0]
[6:0]
[7:0]
[7:0]
[7:0]
[6:0]
Port D Port E
[6:3, 1:0] -
[6:0]
[7:0] [7:0]
[6:3, 1:0] -
[6:0]
-
[7:0] [7:0]
[6:3, 1:0] -
[6:0]
-
[7:0] [7:0]
[6:3, 1:0] -
[6:0]
-
[7:0] [7:0]
[7:0] [7:0]
[6:3, 1:0] -
Port F
-
[7]
-
-
[7]
-
-
[7]
-
-
[7]
[7:0]
-
Port G
-
[3]
-
-
[3]
-
-
[3]
-
-
[3]
[7:0]
-
Port H
-
[3:0]
-
-
[3:0]
-
-
[3:0]
-
-
[3:0]
[3:0]
-
PS017610-0404
General-Purpose I/O