beautypg.com

Usart interrupt enable register – Rainbow Electronics AT75C220 User Manual

Page 87

background image

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

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

DMSI

TXEMPTY

TIMEOUT

7

6

5

4

3

2

1

0

PARE

FRAME

OVRE

ENDTX

ENDRX

RXBRK

TXRDY

RXRDY