====== UTC-SD101: Serial Driver for UpTick Com Ticket ======

==== PLPB-0070-REV-C ====
The Serial Drive Kard(tm) has three half-duplex RS-485 level shifters.

=== Port to Rail Pin Map ===
^PIC32 Pin^Rail Pin on UpTick240^User Connection^chipKIT Abstraction^
|U1BTX,U1BRX|RS-485-RxTx +/- RS-422-Rx A/B|J1 1-GND, 2-B+, 3-A-|Serial1|
|U3ATX,U3ARX|RS-485-RxTx +/- RS-422-Tx Y/Z|J2 1-GND, 2-B+, 3-A-|Serial2|
|U3BTX,U3BRX|RS-485-RxTx +/- RS-232-RxTx|J3 1-GND, 2-B+, 3-A-|Serial3|
|U1ARX|Serial 1 Tx Enable|N/C|GPIO 0 (Serial0 Rx)|
|U1ATX|Serial 2 Tx Enable|N/C|GPIO 1 (Serial0 Tx)|
|CCGPIO|Serial 3 Tx Enable|N/C|GPIO 71|