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Motorola USB08 Reference Manual: Section 2. Hardware Description; Contents; Introduction

Universal serial bus evaluation board using the mc68hc908jb8.
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Designer Reference Manual — USB08 Evaluation Board

2.1 Contents

2.2 Introduction

USB08 Evaluation Board
MOTOROLA

Section 2. Hardware Description

2.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.3
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.3.1
MC68HC908JB8 Microcontroller . . . . . . . . . . . . . . . . . . . . . 28
2.3.2
USB08 Evaluation Board . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.4
Circuit Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.4.1
MCU Core Circuit and USB Interface. . . . . . . . . . . . . . . . . . 31
2.4.2
Input/Output Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
2.4.3
Monitor Mode Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.4.4
User RS232 Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
2.4.5
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.5
Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
2.6
Jumpers and Bridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2.7
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.7.1
Expansion Connector X1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.7.2
Monitor Mode Connector X2 . . . . . . . . . . . . . . . . . . . . . . . .40
2.7.3
User RS232 Connector X3. . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.8
Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
The USB08 evaluation board is the hardware platform for the universal
serial bus (USB) reference design. The board serves the provided demo
application, which is contained in the integrated FLASH memory of the
M68HC08 microcontroller (MCU).
Hardware Description
Designer Reference Manual
27

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Mc68hc908jb8

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