Datasheet

Chapter 17. Signal Descriptions 17-1
Chapter 17
Signal Descriptions
This chapter describes MCF5407 signals. It includes an alphabetical listing of signals,
showing multiplexing, whether it is an input or output to the MCF5407, the state at reset,
and whether a pull-up resistor should be used. The following chapter, Chapter 18, “Bus
Operation,” describes how these signals interact.
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.
17.1 Overview
Figure 17-1 shows the block diagram of the MCF5407 with the signal interface.