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Texas Instruments THVD4431EVM Evaluation Module is designed to demonstrate the THVD4431 easily. The THVD4431 is an RS-485/RS-232 multiprotocol transceiver that supports full and half duplex RS-485 and 3T5R RS-232 configurations. The TI THVD4431EVM Evaluation Module also employs loopback modes for RS-232 and RS-485 to enable on-chip diagnostic testing.