Freescale Semiconductor M9328MX21ADSE user manual Introduction, Configuring Board Components

Configuration and Operation

Chapter 2 Configuration and Operation

2.1Introduction

This section contains configuration information, connection descriptions, and other operational information that may be useful during the development process.

2.2Configuring Board Components

Table 2-1is a summary of configuration settings. The following paragraphs provide additional information about configuring and using the ADS.

Table 2-1. Component Configuration Settings

Component

System Power Switch, SW1

System Reset Switch, SW2

Peripheral Selection Switch, S1

Mode Switch, S2

Power Headers (on CPU card) J1, VCC (3.0 V) J2, 1.8 V

J3, 1.5 V

Position

SW1

OFF ON

BOARD

EDGE

SW2

S1

	1 2		ON
	3
	4
	5 6
	7
	8
		S1
S2
	1 2		ON
	3
	4
	5 6
	7
	8

S2

12

1 2

Effect

Move this switch to the ON position to enable the power source connected to P8 to power the system.

Factory setting is OFF.

Push to reset the M9328MX21ADSE.

The UART1 and UART4 transceivers are forced enabled, the IrDA module is enabled by software, Nexus is disabled, ARM mode JTAG is selected, and the buzzer is connected to PWMO. The LCD touch panel signals are connected.

Factory setting is shown.

Subsection 2.2.1 explains other settings for this switch.

Configures 32-bit Burst Flash as the boot device and the Default clock bypass mode is selected.

Factory setting is shown

Subsection 2.2.2 explains other settings for this switch.

Connects specified power signal. Factory Setting

(Leave jumper installed during normal use.)

Connect ammeter across pins to measure processor current consumption from the specified power source.

	M9328MX21ADSE User’s Manual, Rev. A
Freescale Semiconductor	2-1