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MCP215X Data Logger Demo Board User’s Guide
Figure 2-2 shows the layout of the MCP215X Data Logger Demo Board with indication
to points of interest.
FIGURE 2-2:
MCP215X DATA LOGGER DEMO BOARD
Power
9V Battery
Power LED
Power Supply
LCD Module
(2 Line x 16 Character)
ICD
3
RD7
RD0
PICmicro
?
JP4
SW3
MCU
(40-pin)
CTS RTS
CD
DSR
JP7
SW2
JP3
TX
RX
RI
DTR
Discrete
Transceiver
Encoder/Decoder
Header 1
J1
RESET
JP2
U5
VR1
J4
U1
MCP215X Header
MCP215X
U3
JP1
JP5
JP6
J5
Header 2
Switches for program selection and
program state
SW3 SW2
— — Waiting for program selection
— D Vending machine
D — Not used
D D 250-byte S → P data transfer
Reset Switch
— PICmicro MCU in normal operation
D PICmicro MCU in RESET state
Connect/Isolate
TFDS 4500 TXD and RXD pins
TFDS 4500 TXD and RXD
Connected to MCP215x
TFDS 4500 TXD and RXD
NOT Connected to MCP215x
(Header 1 and 2 can be used)
Ground/Float
PORTD LEDs Cathode
LED Cathode
Grounded
LED Cathode
Floating
(LEDs will not
illuminate)
DS51516A-page 12
? 2004 Microchip Technology Inc.
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