Motorola ColdFire MCF5282 User Manual download pdf (Page 48)

O

verview

SnapGear Inc. supplies a platform for the

n

ext-generation Business Music Media Player

(BMMP) from MP3.com. The BMMP is a

hardware component responsible for the

delivery of playlists scheduled through the Music

Manager software application. The BMMP

essentially acts as a virtual jukebox where music

schedules are downloaded and stored. The

server’s plug-and-play design requires minimal

installation time and little to no maintenance.

MP3.com provides the necessary technical

support to ensure that the player is set up

properly and functions smoothly.

Design Challenges

The design challenge was to create a

platform to handle the complex integration

of hardware and software while

maintaining a reduced bill of materials.

SnapGear’s SecureEdge Internet

appliance platform, which runs

SnapGear’s implementation of the µClinux

operating system, is a version of a Linux

®

operating system for processors without

memory management units (MMUs).

This application needed a microprocessor

that had a low price, as well as the

performance, integration and debugging

capabilities that meet the consumer’s end

requirements along with speeding time to

market. Freescale Semiconductor’s

ColdFire

®

MCF5307 microprocessor met

all of these challenges. The BMMP

generates two channels of monaural

sound which are fed to an external

amplifier, thereby supporting two

independent music zones simultaneously,

including the possibility of providing

background audio for a business phone

system while customers are on hold.

MCF

5307

Music Media Player

ColdFire

®

Embedded Controller Application

P

ower Supply

V.90

Modem

3.5"

Hard Drive

Dual IDE

Controller

F

lash

SDRAM

UART

ColdFire

®

MCF5307

Microprocessor

Debug

Timers

SDRAMC

DMAMAC

GPIO

Stereo D/A

Audio

Codec

Ethernet

1

0/100

Ethernet

10/100

Real-Time

Clock

LCD

D

isplay

Keyboard

Address

Control

Data

M

CF5307 BLOCK DIAGRAM

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