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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 455 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
[9]
LEV_RTS
RTS Trigger Level
This bit can change the RTS trigger level.
0= Low level triggered.
1= High level triggered.
UART Mode: LEV_RTS (MCR[9]) = 1
RTS Pin
RTS_ST (MCR[13])
RTS Pin
RTS_ST (MCR[13])
UART Mode: LEV_RTS (MCR[9]) = 0
RS-485 Mode: LEV_RTS (MCR[9]) = 0
TX Pin
RTS_ST (MCR[13])
TX Pin
RTS_ST (MCR[13])
RS-485 Mode: LEV_RTS (MCR[9]) = 1
Start
Bit
D0
D1
D2
D3
D4
D5
D6
D7
Start
Bit
D0
D1
D2
D3
D4
D5
D6
D7
[8:2]
Reserved
Reserved.
[1]
RTS
RTS (Request-to-send) Signal
If the LEV_RTS(UA_MCR[9]) set to low level triggered,
0 = Drive RTS pin to logic 1.
1 = Drive RTS pin to logic 0.
If the LEV_RTS(UA_MCR[9] set to high level triggered,
0 = Drive RTS pin to logic 0.
1 = Drive RTS pin to logic 1.
[0]
Reserved
Reserved.