User Manual

AT75C220
87
USART Interrupt Enable Register
Name: US_IER
Access Type:Write-only
Reset Value: Undefined
• RXRDY: Enable RXRDY Interrupt
0 = No effect.
1 = Enables RXRDY interrupt.
• TXRDY: Enable TXRDY Interrupt
0 = No effect.
1 = Enables TXRDY interrupt.
• RXBRK: Enable Receiver Break Interrupt
0 = No effect.
1 = Enables receiver break interrupt.
• ENDRX: Enable End of Receive Transfer Interrupt
0 = No effect.
1 = Enables end of receive transfer interrupt.
• ENDTX: Enable End of Transmit Transfer Interrupt
0 = No effect.
1 = Enables end of transmit transfer interrupt.
• OVRE: Enable Overrun Error Interrupt
0 = No effect.
1 = Enables overrun error interrupt.
• FRAME: Enable Framing Error Interrupt
0 = No effect.
1 = Enables framing error interrupt.
• PARE: Enable Parity Error Interrupt
0 = No effect.
1 = Enables parity error interrupt.
• TIMEOUT: Enable Time-out Interrupt
0 = No effect.
1 = Enables reception time-out interrupt.
• TXEMPTY: Enable TXEMPTY Interrupt
0 = No effect.
1 = Enables TXEMPTY interrupt.
• DMSI: Delta Modem Status Indication Interrupt
0 = No effect.
1 = Enables DMSI interrupt.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
–––––DMSI TXEMPTY TIMEOUT
76543210
PARE FRAME OVRE ENDTX ENDRX RXBRK TXRDY RXRDY