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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 448 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
UART n Interrupt Enable Register (UAn_IER)
Register
Offset
R/W
Description
Reset Value
UAn_IER
n=0,1,2,3,4,5,6,7
,8,9,10
U0x004 R/W
UART n Interrupt Enable Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
AUTO_CTS_EN AUTO_RTS_EN
TIME_OUT_
EN
Reserved
LIN_RX_BRK_IEN
7
6
5
4
3
2
1
0
Reserved
WAKE_EN BUF_ERR_IEN
RTO_IEN
MODEM_IEN
RLS_IEN
THRE_IEN
RDA_IEN
Bits
Description
[31:14]
Reserved
Reserved.
[13]
AUTO_CTS_EN
CTS Auto Flow Control Enable Control
0 = CTS auto flow control Disabled.
1 = CTS auto flow control Enabled.
When CTS auto-flow is enabled, the UART will send data to external device when CTS
input assert (UART will not send data to device until CTS is asserted).
[12]
AUTO_RTS_EN
RTS Auto Flow Control Enable Control
0 = RTS auto flow control Disabled.
1 = RTS auto flow control Enabled.
When RTS auto-flow is enabled, if the number of bytes in the RX FIFO equals the
RTS_TRI_LEV (UA_FCR [19:16]), the UART will de-assert RTS signal.
[11]
TIME_OUT_EN
Time-out Counter Enable Control
0 = Time-out counter Disabled.
1 = Time-out counter Enabled.
[10:9]
Reserved
Reserved.
[8]
LIN_RX_BRK_IEN
LIN RX Break Field Detected Interrupt Enable Control
0 = Lin bus RX break filed interrupt masked off.
1 = Lin bus RX break filed interrupt Enabled.
Note:
This field is used for LIN function mode.
[7]
Reserved
Reserved.
[6]
WAKE_EN
UART Wake-up Function Enable Control
1 = UART wake-up function Enabled when the chip is in Power-down mode, an external 0
= UART wake-up function Disabled.