ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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UART Interrupt Status Register (UART_INTSTS)
Register
Offset
R/W Description
Reset Value
UART_INTSTS
U0x1C
R/W UART Interrupt Status Register
0x0040_0002
31
30
29
28
27
26
25
24
ABRINT
TXENDINT
HWBUFEINT
HWTOINT
HWMODINT
HWRLSINT
Reserved
23
22
21
20
19
18
17
16
Reserved
TXENDIF
HWBUFEIF
HWTOIF
HWMODIF
HWRLSIF
Reserved
15
14
13
12
11
10
9
8
Reserved
WKINT
BUFERRINT
RXTOINT
MODEMINT
RLSINT
THREINT
RDAINT
7
6
5
4
3
2
1
0
Reserved
WKIF
BUFERRIF
RXTOIF
MODEMIF
RLSIF
THREIF
RDAIF
Bits
Description
[31]
ABRINT
Auto-baud Rate Interrupt Indicator (Read Only)
This bit is set if ABRIEN (UART_INTEN[18]) and ABRIF (UART_ALTCTL[17]) are both set
to 1.
0 = No Auto-baud Rate interrupt is generated.
1 = The Auto-baud Rate interrupt is generated.
[30]
TXENDINT
Transmitter Empty Interrupt Indicator (Read Only)
This bit is set if TXENDIEN (UART_INTEN[22]) and TXENDIF(UART_INTSTS[22]) are
both set to 1.
0 = No Transmitter Empty interrupt is generated.
1 = Transmitter Empty interrupt is generated.
[29]
HWBUFEINT
PDMA Mode Buffer Error Interrupt Indicator (Read Only)
This bit is set if BUFERRIEN (UART_INTEN[5]) and HWBUFEIF (UART_INTSTS[21]) are
both set to 1.
0 = No buffer error interrupt is generated in PDMA mode.
1 = Buffer error interrupt is generated in PDMA mode.
[28]
HWTOINT
PDMA Mode RX Time-out Interrupt Indicator (Read Only)
This bit is set if RXTOIEN (UART_INTEN[4]) and HWTOIF(UART_INTSTS[20]) are both
set to 1.
0 = No RX time-out interrupt is generated in PDMA mode.
1 = RX time-out interrupt is generated in PDMA mode.
[27]
HWMODINT
PDMA Mode MODEM Status Interrupt Indicator (Read Only)
This bit is set if MODEMIEN (UART_INTEN[3]) and HWMODIF(UART_INTSTS[19]) are
both set to 1.
0 = No Modem interrupt is generated in PDMA mode.
1 = Modem interrupt is generated in PDMA mode.
[26]
HWRLSINT
PDMA Mode Receive Line Status Interrupt Indicator (Read Only)
This bit is set if RLSIEN (UART_INTEN[2]) and HWRLSIF(UART_INTSTS[18]) are both