Freescale Semiconductor MCF5480 - Manual (Page 71)

MCF548x Reference Manual, Rev. 3
Freescale Semiconductor 2-1
Chapter 2
Signal Descriptions
2.1 Introduction
This chapter describes the MCF548x signals .
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 RAS and TA, are indicated with an overbar.
2.1.1 Block Diagram
Figure 2-1 displays the signals of the MCF548x.