Motorola M68CPU32BUG Manuale Utente Scaricare il pdf (Pagina 2)

MOTOROLA MC68332TUT/D

1 INTRODUCTION ...........................................................................................................1

2 DESIGNING THE HARDWARE ....................................................................................3

2.1 Using Data Bus Pins to Configure the MCU........................................................... 3

2.2 Choosing Memory Width ........................................................................................ 4

2.3 Pins that Need Pull-Up Resistors ........................................................................... 5

2.4 Using Sockets......................................................................................................... 6

2.5 Clock Circuitry......................................................................................................... 7

2.6 Getting Out of Reset............................................................................................. 12

2.7 Power Supply........................................................................................................ 14

2.8 Designing for Electromagnetic Compatibility ........................................................ 15

2.9 Connecting Memory and Peripherals ................................................................... 18

2.10 Using External Interrupts .................................................................................... 22

3 ESTABLISHING COMMUNICATION .........................................................................26

3.1 Communicating with the Target Board ................................................................. 26

3.2 Communicating with Motorola Boards.................................................................. 28

4 SYSTEM INITIALIZATION ..........................................................................................31

4.1 Configuring the Central Processing Unit............................................................... 31

4.2 Configuring the System Integration Module.......................................................... 33

4.3 Configuring Internal RAM ..................................................................................... 37

4.4 Configuring the Queued Serial Module................................................................. 38

4.5 Configuring the Time Processor Unit.................................................................... 41

5 TROUBLESHOOTING ................................................................................................46

5.1 Critical Signals to Check....................................................................................... 46

5.2 Common Problems and Solutions ........................................................................ 46

6 SOURCES OF INFORMATION ..................................................................................51

6.1 Technical Literature .............................................................................................. 51

6.2 Freeware Data Systems ....................................................................................... 52

6.3 Other Sources....................................................................................................... 52

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Motorola M68CPU32BUG Manuale Utente Pagina 2