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1300 Henley Court

Pullman, WA 99163

509.334.6306

www.digilentinc.com

PmodCLP™ Reference Manual

Revised May 24, 2016

This manual applies to the PmodCLP rev. B

DOC#: 502-142

Other product and company names mentioned may be trademarks of their respective owners.

Page 1 of 6

Overview

The Digilent PmodCLP is a 16×2 character LCD module that uses a 8-bit parallel data interface to let system boards

display up to 32 different characters out of over 200 possible options.

1 Functional Description

The PmodCLP utilizes a Samsung KS0066 LCD controller to display information to a Sunlike LCD panel. The module

can execute a variety of instructions, such as erasing specific characters, setting different display modes, scrolling,

and displaying user-defined characters.

2 Interfacing with the Pmod

The PmodCLP communicates with the host board via the GPIO protocol. This particular module requires specific

timings in order to program the KS0066 correctly, as per the KS0066 datasheet. These timings are described after

the pinout description table shown below:

The PmodCLP.

 16×2 character LCD with parallel interface

 192 predefined characters including

93 ASCII characters

 Up to 8 user-definable characters

 Read and write capability to and from the

display

 Small PCB size for flexible designs 2.3“ ×

3.3” (5.8 cm × 8.4 cm)

 Follows Digilent Pmod Interface

Specification Type 1

 Library and example code available

in resource center

Features include:

Summary of content (6 pages)

PAGE 1
300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodCLP™ Reference Manual Revised May 24, 2016 This manual applies to the PmodCLP rev. B Overview The Digilent PmodCLP is a 16×2 character LCD module that uses a 8-bit parallel data interface to let system boards display up to 32 different characters out of over 200 possible options. Features include:       The PmodCLP.
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PmodCLP™ Reference Manual Header J1 - Top Half Pin Signal Description Header J1 - Bottom Half Pin Signal Description Pin Signal 1 DB0 Data Bit 0 7 DB4 Data Bit 4 1 RS 2 DB1 Data Bit 1 8 DB5 Data Bit 5 2 R/W 3 DB2 Data Bit 2 9 DB6 Data Bit 6 3 E 4 DB3 Data Bit 3 10 DB7 Data Bit 7 4 NC 5 GND 11 GND Power Supply Ground 5 GND Power Supply Ground 6 VCC 12 VCC Positive Power Supply¹ 6 VCC Positive Power Supply Power Supply Ground Positive Power Supply1 Header J
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PmodCLP™ Reference Manual 2.
PAGE 4
PmodCLP™ Reference Manual 2.3 CGRAM and DDRAM The LCD controller contains a character-generator ROM (CGROM) with 192 preset 5×8 character patterns (see table 4 below), a character-generator RAM (CGRAM) that can hold 8 user-defined 5×8 characters, and a display data RAM (DDRAM) that can hold 80 character codes. Character codes written into the DDRAM serve as indexes into the CGROM (or CGRAM).
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PmodCLP™ Reference Manual 2.4 Predefined Character Table Any external power applied to the PmodCLP must be at 5V for Revision A of the PmodCLP and at 3.3V for Revision B of the PmodCLP. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.
PAGE 6
PmodCLP™ Reference Manual 3 Physical Descriptions The pins on the pin header are spaced 100 mil apart. The PCB is 2.3 inches long on the sides parallel to the pins on the pin header and 3.3 inches long on the sides perpendicular to the pin header. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.