参数资料
型号: GPIODM-KPLCD
厂商: Microchip Technology
文件页数: 11/28页
文件大小: 0K
描述: BOARD DEMO LCD GPIO EXP KEYPAD
标准包装: 1
主要目的: 接口,前面板控制器,LCD
嵌入式: 是,MCU,8 位
已用 IC / 零件: MCP23008,MCP23S08,MCP23017,MCP23S17,PIC18F4550,MCP1702
主要属性: (2)8 位和(2)16 位 GPIO 扩展器,4x4 键盘,2x16 LCD
次要属性: 用于 MCP23x08 和 MCP23x17 的接头
已供物品: 板,CD
产品目录页面: 658 (CN2011-ZH PDF)
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GPIO EXPANDER KEYPAD
AND LCD DEMO BOARD
USER ’S GUIDE
Chapter 2. Installation and Operation
2.1
2.2
INTRODUCTION
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 2 C? and SPI versions are included on the board to demonstrate both serial
interfaces.
FEATURES
The GPIO Expander Keypad and LCD Demo Board has the following features:
? Two (2) 8-bit GPIO Expanders
- MCP23008 with I 2 C? interface
- MCP23S08 with SPI interface
? Two (2) 16-bit GPIO Expanders
- MCP23017 with I 2 C? interface
- MCP23S17 with SPI interface
? 4X4 keypad layout (16 momentary buttons)
- Numbers 0 - 9
- Six special function buttons
? A 2X16 LCD module
? Headers for the MCP23X08 and MCP23X17 pins
? Header for programming the PIC18F4550
? 2006 Microchip Technology Inc.
DS51636A-page 7
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