MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor
14-1
Chapter 14
General Purpose I/O Module
14.1
Introduction
Many of the pins associated with the external interface may be used for several different functions. When
not used for their primary function, many of the pins may be used as general-purpose digital I/O pins. In
some cases, the pin function is set by the operating mode, and the alternate pin functions are not supported.
The digital I/O pins are grouped into 8-bit ports. Some ports do not use all 8 bits. Each port has registers
that configure, monitor, and control the port pins.
is a block diagram of the MCF52235 ports.
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:MCF52234CVM60,
MCF52235CVM60
