Z8FMC16100 Series Flash MCU
Product Specification
35
General-Purpose I/O
The Z8FMC16100 Series Flash MCU contains general-purpose input/output pins (GPIO)
arranged as Ports A–C. Each port contains control and data registers. The GPIO control
registers are used to determine data direction, open-drain, output drive current, pull-up,
and alternate pin functions. Each port pin is individually programmable.
GPIO Port Availability By Device
Table 12 lists the port pins available with each device and package type.
Table 12. Port Availability by Device and Package Type
Package
Port A
Port B
Port C
32-pin
[7:0]
[7:0]
[0]
Architecture
Figure 5 illustrates a simplified block diagram of a GPIO port pin. In this figure, the abil-
ity to accommodate alternate functions and variable port current drive strength are not
illustrated.
PS024604-1005
P R E L I M I N A R Y
GPIO Port Availability By Device
ZILOG [ ZILOG, INC. ]
