Chapter 2 signal descriptions, 1 introduction, 2 overview – Freescale Semiconductor ColdFire MCF52210 User Manual

Page 31: Chapter 2, Signal descriptions, Introduction -1, Overview -1

Advertising
background image

Signal Descriptions

MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2

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

Figure 2-1

shows the block diagram of the device with the signal interface.

Advertising
This manual is related to the following products: