MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 9-1

Chapter 9

Chip Configuration Module (CCM)

9.1 Introduction

This chapter describes the various operating configurations of the device. It also provides a description of
signals used by the CCM and a programming model.

9.1.1 Features

The chip configuration for the MCF52211 is determined by the chip configuration module (CCM). The
configuration options selectable at reset are:
Operating Mode
Serial flash programming mode (EzPort mode)
Single-chip mode
Clock Reference
External oscillator
External crystal
On-chip 8 MHz oscillator
Phase-locked look (PLL)
BDM or JTAG mode

9.2 External Signal Descriptions

Table 9-1 provides an overview of the CCM signals.
Table 9-1. Signal Properties
Name Function Reset State1
1The use of external pull-up/down resistors is highly recommended.
RCON Reset configuration select Internal weak pull-up device
CLKMOD[1:0] Clock mode select2
2Refer to Chapter 6, “Clock Module” for more information.
JTAG_EN JTAG or BDM mode selection Internal weak pull-down device
TEST Test mode selection Internal weak pull-down device