Epson S1C17W22 Technical Manual page 137

The following shows the correspondence between the bit and interrupt:
UAnINTE.TENDIE bit: End-of-transmission interrupt
UAnINTE.FEIE bit:
UAnINTE.PEIE bit:
UAnINTE.OEIE bit:
UAnINTE.RB2FIE bit: Receive buffer two bytes full interrupt
UAnINTE.RB1FIE bit: Receive buffer one byte full interrupt
UAnINTE.TBEIE bit: Transmit buffer empty interrupt
S1C17W22/W23 TECHNICAL MANUAL
(Rev. 1.3)
Framing error interrupt
Parity error interrupt
Overrun error interrupt
Seiko Epson Corporation
12 UART (UART)
12-13