20-101-1196 Rabbit Semiconductor, 20-101-1196 Datasheet - Page 100
20-101-1196
Manufacturer Part Number
20-101-1196
Description
MODULE RABBITCORE RCM3900
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-101-1196.pdf
(168 pages)
Specifications of 20-101-1196
Module/board Type
MPU Core Module
For Use With/related Products
RCM3900
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
20-101-1196
316-1155
316-1155
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B.4.8 Other Prototyping Board Modules
An optional LCD/keypad module is available that can be mounted on the Prototyping
Board. The signals on headers LCD1JB and LCD1JC will be available only if the LCD/
keypad module is installed. Refer to Appendix C, “LCD/Keypad Module,” for complete
information.
B.4.9 Quadrature Decoder
Four quadrature decoder inputs are available on screw-terminal header J5. To use the PF0
input from the Rabbit microprocessor, which goes to the QD1B input, remember to recon-
figure the jumper on header JP3 to jumper pins 1–2.
Additional information on the use of the quadrature decoders on Parallel Port F is pro-
vided in the Rabbit 3000 Microprocessor User’s Manual.
B.4.10 Stepper-Motor Control
The Prototyping Board can be used to demonstrate the use of the RCM3900 to control a
stepper motor. Stepper motor control typically directs moves in two orthogonal directions,
and so two sets of stepper-motor control circuits are provided for via screw-terminal head-
ers J3 and J4.
In order to use the stepper-motor control, install two Texas Instruments L293DN chips at
locations U2 and U3 (shown in Figure B-10). These chips are readily available from your
favorite electronics parts source, and may be purchased through our
Web store
as part
number 660-0205.
Figure B-10. Install Four-Channel Push-Pull Driver Chips
RabbitCore RCM3900 User’s Manual
100
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