Microchip Technology MCP212X, Руководство пользователя

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MCP212X Developer’s Daughter Board User’s Guide
DS51571B-page 20
©
2006 Microchip Technology Inc.
2.5.3 IR Transceiver Circuit
The IR transceiver circuit uses a Vishay
®
TFDU 4300 integrated optical transceiver.
Footprints for an optional optical transceiver are implemented. These footprints are for
the Vishay TFDU 4100 and the Agilent
®
HSDL-3000. Jumpers are used to allow all
three implementations to be installed, but with only one connected to the MCP2120
TXIR and RXIR pins.
2.5.4 Signal Header
To allow easy access to many of the system signals, a header (HD1) was placed on
one of the edges of the board. This allows the signals from the MCP2120 to be easily
accessed and connected into an existing application for initial development or
proof-of-concept.
FIGURE 2-5: 14-PIN SIGNAL INTERFACE HEADER HD1
V
SS
V
DD
RA1
RE
SET
RX
TX
16
XC
LK
NC
TXIR
RXIR
HD1
RA0 RA3
RC1 RC0