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B.1.6 Serial Communication..............................................................................................................103
B.1.6.1 RS-232 ............................................................................................................................. 104
B.1.6.2 RS-485 ............................................................................................................................. 105
B.1.7 Other Prototyping Board Modules ...........................................................................................107
B.1.8 Jumper Configurations .............................................................................................................108
B.1.9 Use of Rabbit 3000 Parallel Ports ............................................................................................110
B.2 RCM3720 Prototyping Board ..........................................................................................................112
B.2.1 Features ....................................................................................................................................113
B.2.2 Mechanical Dimensions and Layout ........................................................................................114
B.2.3 Power Supply ...........................................................................................................................115
B.2.4 Using the RCM3720 Prototyping Board ..................................................................................116
B.2.4.1 Prototyping Area.............................................................................................................. 118
B.2.5 Serial Communication..............................................................................................................119
B.2.6 Use of Rabbit 3000 Parallel Ports ............................................................................................121
C.1 Specifications ...................................................................................................................................123
C.2 Contrast Adjustments for All Boards ...............................................................................................125
C.3 Keypad Labeling ..............................................................................................................................126
C.4 Header Pinouts .................................................................................................................................127
C.4.1 I/O Address Assignments .........................................................................................................127
C.5 Install Connectors on Prototyping Board .........................................................................................128
C.6 Mounting LCD/Keypad Module on the Prototyping Board ............................................................129
C.7 Bezel-Mount Installation..................................................................................................................130
C.7.1 Connect the LCD/Keypad Module to Your Prototyping Board...............................................132
C.8 Sample Programs .............................................................................................................................133
C.9 LCD/Keypad Module Function Calls ..............................................................................................134
C.9.1 LCD/Keypad Module Initialization..........................................................................................134
C.9.2 LEDs.........................................................................................................................................134
C.9.3 LCD Display.............................................................................................................................135
C.9.4 Keypad......................................................................................................................................155
D.1 Power Supplies.................................................................................................................................158
D.1.1 Battery Backup.........................................................................................................................159
D.1.2 Battery-Backup Circuit ............................................................................................................160
D.1.3 Reset Generator ........................................................................................................................160
E.1 Sample Programs..............................................................................................................................162
E.2 Module Documentation ....................................................................................................................162
RabbitCore RCM3700 User's Manual
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