NUC120VE3AN Datasheet, PDF (404/600 Pages) Nuvotem Talema – NuMicro™ Family NUC100 Series Technical Reference Manual

NuMicro™ NUC100 Series Technical Reference Manual
Modem Status Register (UA_MSR) (not available in UART2 channel)
Register
Offset
R/W Description
UART0_BA+0x14 R/W UART0 Modem Status Register
UA_MSR
UART1_BA+0x14 R/W UART1 Modem Status Register
UART2_BA+0x14 R/W Reserved
Reset Value
0x0000_0000
0x0000_0000
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
LEV_CTS
7
6
5
4
3
2
1
0
Reserved
CTS_ST
Reserved
DCTSF
Bits
[31:9]
[8]
[7:5]
[4]
[3:1]
[0]
Descriptions
Reserved
LEV_CTS
Reserved
CTS_ST
Reserved
DCTSF
Reserved
CTS Trigger Level (not available in UART2 channel)
This bit can change the CTS trigger level.
1= high level triggered
0= low level triggered
Reserved
CTS Pin Status (Read Only) (not available in UART2 channel)
This bit is the pin status of CTS.
Reserved
Detect CTS State Change Flag (Read Only) (not available in UART2 channel)
This bit is set whenever CTS input has change state, and it will generate Modem
interrupt to CPU when UA_IER [MODEM_IEN] is set to 1.
Software can write 1 to clear this bit to zero
- 404 -
Publication Release Date: Dec. 22, 2010
Revision V1.06