ISD94100 Series Technical Reference Manual
Sep 9, 2019
Page
590
of 928
Rev1.09
IS
D
9
410
0
S
ER
IE
S
T
E
C
HN
ICA
L
RE
F
E
RE
NCE
M
AN
U
AL
UART Interrupt Enable Register (UART_INTEN)
Register
Offset
R/W Description
Reset Value
UART_INTEN
U0x04
R/W UART Interrupt Enable Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
TXENDIEN
Reserved
ABRIEN
Reserved
15
14
13
12
11
10
9
8
RXPDMAEN
TXPDMAEN
ATOCTSEN
ATORTSEN
TOCNTEN
Reserved
7
6
5
4
3
2
1
0
Reserved
WKIEN
BUFERRIEN
RXTOIEN
MODEMIEN
RLSIEN
THREIEN
RDAIEN
Bits
Description
[31:23]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[22]
TXENDIEN
Transmitter Empty Interrupt Enable Bit
If TXENDIEN (UART_INTEN[22]) is enabled, the Transmitter Empty interrupt TXENDINT
(UART_INTSTS[30]) will be generated when TXENDIF (UART_INTSTS[22]) is set (TX
FIFO (UART_DAT) is empty and the STOP bit of the last byte has been transmitted).
0 = Transmitter empty interrupt Disabled.
1 = Transmitter empty interrupt Enabled.
[21:19]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[18]
ABRIEN
Auto-baud Rate Interrupt Enable Bit
0 = Auto-baud rate interrupt Disabled.
1 = Auto-baud rate interrupt Enabled.
[17:16]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[15]
RXPDMAEN
RX PDMA Enable Bit
This bit can enable or disable RX PDMA service.
0 = RX PDMA Disabled.
1 = RX PDMA Enabled.
Note:
If RLSIEN (UART_INTEN[2]) is enabled and HWRLSINT (UART_INTSTS[26]) is set
to 1, the RLS (Receive Line Status) Interrupt is caused. If RLS interrupt is caused by Break
Error Flag BIF(UART_FIFOSTS[6]), Frame Error Flag FEF(UART_FIFO[5]) or Parity Error
Flag PEF(UART_FIFOSTS[4]) , UART PDMA receive request operation is stop. Clear Break
Error Flag BIF or Frame Error Flag FEF or Parity Error Flag PEF by writing “1” to
corresponding BIF, FEF and PEF to make UART PDMA receive request operation continue.
[14]
TXPDMAEN
TX PDMA Enable Bit
This bit can enable or disable TX PDMA service.
0 = TX PDMA Disabled.