GPIODM-KPLCD Microchip Technology, GPIODM-KPLCD Datasheet - Page 11

• Manufacturer Part Number: GPIODM-KPLCD
• Description: BOARD DEMO LCD GPIO EXP KEYPAD
• Manufacturer: Microchip Technology

Specifications of GPIODM-KPLCD

• Main Purpose: Interface, Front Panel Controller, LCD
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP23008, MCP23S08, MCP23017, MCP23S17, PIC18F4550, MCP1702
• Primary Attributes: (2) 8-Bit and (2) 16-Bit GPIO Expanders, 4x4 Keypad, 2x16 LCD
• Secondary Attributes: Headers for the MCP23x08 and MCP23x17
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC18
• Features: SPI And I2C Buses, Keypad And LCD Interface, ICSP Header
• Kit Contents: Board
• Silicon Core Number: PIC18F
• Silicon Family Name: PIC18F4xxx
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With: MCP23S08/17, MCP23008/17
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

2.1
2.2
© 2006 Microchip Technology Inc.
INTRODUCTION
FEATURES
Chapter 2. Installation and Operation
This chapter discusses the setup and operation of the GPIO Expander Keypad and
LCD Demo Board.
The GPIO Expander Keypad and LCD Demo Board is designed to demonstrate using
GPIO expanders in a keypad and LCD example. The MCP23X17 interfaces to a 2x16
LCD module and the MCP23X08 interfaces to a 4x4 keyed matrix.
Both the I
interfaces.
The GPIO Expander Keypad and LCD Demo Board has the following features:
• Two (2) 8-bit GPIO Expanders
• Two (2) 16-bit GPIO Expanders
• 4X4 keypad layout (16 momentary buttons)
• A 2X16 LCD module
• Headers for the MCP23X08 and MCP23X17 pins
• Header for programming the PIC18F4550
- MCP23008 with I
- MCP23S08 with SPI interface
- MCP23017 with I
- MCP23S17 with SPI interface
- Numbers 0 - 9
- Six special function buttons
2
C™ and SPI versions are included on the board to demonstrate both serial
2
2
C™ interface
C™ interface
GPIO EXPANDER KEYPAD
AND LCD DEMO BOARD
USER’S GUIDE
DS51636A-page 7