Uart Interrupt Status Register (Uartintst); Uart Interrupt Status Register (Uartintst) Register Field Descriptions - Texas Instruments UCD3138 Technical Reference Manual

UART Registers Reference

12.7.5 UART Interrupt Status Register (UARTINTST)

Address FFF7D810 – UART 0 Interrupt Status Register
ddress FFF7D910 – UART 1 Interrupt Status Register
7 6
BUS_BUSY Reserved
R-0 R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
R/C- means that bit can be read or cleared; each of the bits except RXERR and BUS BUSY can be cleared by writing a 1 to the bit.
Table 12-6. UART Interrupt Status Register (UARTINTST) Register Field Descriptions
Bit Field
7 BUS_BUSY
6 Reserved
5 FRAME_ERR
4 OVERRUN_ERR
3 PARITY_ERR
2 WAKEUP_INT
1 BRKDT_INT
0 RX_ERR
430
UART Overview
Figure 12-7. UART Interrupt Status Register (UARTINTST)
5 4
FRAME OVERRUN_ER
_ERR R
R/C-0 R/C-0
Type Reset
R 0
UART Receiver Busy Indicator
0 = UART Receiver ready to accept new frame
1 = UART Receiver currently processing message
R 0
R/C 0
UART Receiver Framing Error
0 = No framing error found within incoming data message
1 = Indicates the incoming data message had a framing error
R/C 0
UART Receiver Buffer Overflow
0 = No overflow condition found in receive buffer
1 = Indicates the receive buffer has overflowed
R/C 0
UART Receiver Parity Error
0 = No parity error found on the incoming data message
1 = Indicates a parity error found on the incoming data message
R/C 0
UART Receiver Wakeup Interrupt
0 = No Wakeup Interrupt received from UART Receiver
1 = Wakeup Interrupt received from UART Receiver
R/C 0
UART Receiver Broken Circuit Interrupt
0 = No Broken Circuit interrupt received from UART Receiver
1 = Indicates a Broken Circuit interrupt received from UART Receiver
R 0
UART Receiver Error
0 = No UART Receiver Errors detected
1 = Frame Error or Overrun error or Parity Error or Broken Circuit error received from
UART Receiver
Copyright © 2016, Texas Instruments Incorporated
3 2
PARITY_ERR WAKEUP_INT
R/C-0 R/C-0
Description
SNIU028A – February 2016 – Revised April 2016
www.ti.com
1 0
BRKDT_INT RX_ERR
R/C-0 R-0
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