101-1050 Rabbit Semiconductor, 101-1050 Datasheet - Page 129

• Manufacturer Part Number: 101-1050
• Description: KIT DEV RABBITCORE RCM3750
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 3000r
• Type: MPU Moduler

Specifications of 101-1050

• Contents: RabbitCore Module, Dev. Board, AC Adapter, Cable and Dynamic C® CD-Rom
• Processor To Be Evaluated: RCM3750
• Data Bus Width: 8 bit
• Interface Type: Ethernet
• For Use With/related Products: RCM3750
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 101-1049; 101-1049; 316-1117; Q2479714; Q2828455

C.2 Contrast Adjustments for All Boards
Starting in 2005, LCD/keypad modules were factory-configured to optimize their contrast
based on the voltage of the system they would be used in. Be sure to select a KDU3V
LCD/keypad module for use with the RCM3700 Prototyping Board — these modules
operate at 3.3 V. You may adjust the contrast using the potentiometer at R2 as shown in
Figure C-3. LCD/keypad modules configured for 5 V may be used with the 3.3 V
RCM3700 Prototyping Board, but the backlight will be dim.
You can set the contrast on the LCD display of pre-2005 LCD/keypad modules by adjust-
ing the potentiometer at R2 or by setting the voltage for 3.3 V by connecting the jumper
across pins 3–4 on header J5 as shown in Figure C-3. Only one of these two options is
available on these LCD/keypad modules.
User’s Manual
NOTE: Older LCD/keypad modules that do not have a header at J5 or a contrast adjust-
ment potentiometer at R2 are limited to operate only at 5 V, and will not work with the
RCM3700 Prototyping Board. The older LCD/keypad modules are no longer being sold.
Figure C-3. LCD/Keypad Module Voltage Settings
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