MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor
2-1
Chapter 2
Signal Descriptions
2.1
Introduction
This chapter describes signals implemented on this device and includes an alphabetical listing of signals
that characterizes each signal as an input or output, defines its state at reset, and identifies whether a
pull-up resistor should be used.
NOTE
The terms ‘assertion’ and ‘negation’ are used to avoid confusion when
dealing with a mixture of active-low and active-high signals. The term
‘asserted’ indicates that a signal is active, independent of the voltage level.
The term ‘negated’ indicates that a signal is inactive.
Active-low signals, such as SRAS and TA, are indicated with an overbar.
2.2
Overview
shows the block diagram of the device with the signal interface.
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
