GPIODM-KPLCD Microchip Technology, GPIODM-KPLCD Datasheet - Page 12

• 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

GPIO Expander Keypad and LCD Demo Board User’s Guide
2.3
DS51636A-page 8
GETTING STARTED
The GPIO Expander Keypad and LCD Demo Board is a fully functional, assembled and
tested board for demonstrating the MCP23008 and MCP23017 (I
MCP23S08 and MCP23S17 (SPI interface) general purpose I/O expanders. The
following describes the basic setup and operation (see
1. Either connect a 9V power supply into the power jack (J2) or connect a 5 V power
2. The green power LED will illuminate.
3. The LCD will display the startup splash screen.
4. The appropriate LEDs (I
5. Pressing buttons:
FIGURE 2-1:
supply to the V
mode.
- 0 - 9, #, *: will be reflected on the LCD
- M: switches modes (I
MCP23X08; B: backspace; R: carriage return, and screen clear (2nd
press); S: space
GND
9V
+5V
Not Populated
USB
M
DD
BOARD LAYOUT
EXT
USB
and GND test points.
2
2
C and SPI) to communicate with the MCP23X17 and
C or SPI) will illuminate to indicate the current serial
LED
LED
7
4
1
*
16-bit HEADER
8-bit HEADER
2 X 16 LCD
8
5
2
0
PIC18F2550
9
6
3
#
LED
LED
Figure
M
B
R
S
© 2006 Microchip Technology Inc.
2-1):
2
C interface) and