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EM342-RTR Datasheet(PDF) 84 Page - Silicon Laboratories

Part # EM342-RTR
Description  High-Performance, Integrated RF4CE System-on-Chip
PDF  143 Pages
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Manufacturer  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
Logo SILABS - Silicon Laboratories

EM342-RTR Datasheet(HTML) 84 Page - Silicon Laboratories

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EM342
84
Rev 1.0
SC1_UARTCFG: Address: 0x4000C85C Reset: 0x0
Register 8.10. SC1_UARTCFG: UART Configuration Register
Bit
31
30
29
28
27
26
25
24
Name
0
0
0
0
0
0
0
0
Bit
23
22
21
20
19
18
17
16
Name
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
Name
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
Name
0
SC_
UARTAUTO
SC_
UARTFLOW
SC_
UARTODD
SC_
UARTPAR
SC_
UART2STP
SC_
UART8BIT
SC_
UARTRTS
Bitname
Bitfield
Access
Description
SC_UARTAUTO
[6]
RW
Set this bit to enable automatic nRTS control by hardware (SC_UARTFLOW must
also be set). When automatic control is enabled, nRTS will be deasserted when the
receive FIFO has space for only one more byte (inhibits transmission from the other
device) and will be asserted if it has space for more than one byte (enables trans-
mission from the other device). The SC_UARTRTS bit in this register has no effect if
this bit is set.
SC_UARTFLOW
[5]
RW
Set this bit to enable using nRTS/nCTS flow control signals. Clear this bit to disable
the signals. When this bit is clear, the UART transmitter will not be inhibited by
nCTS.
SC_UARTODD
[4]
RW
If parity is enabled, specifies the kind of parity.
0: Even parity.
1: Odd parity.
SC_UARTPAR
[3]
RW
Specifies whether to use parity bits.
0: Don't use parity.
1: Use parity.
SC_UART2STP
[2]
RW
Number of stop bits transmitted.
0: 1 stop bit.
1: 2 stop bits.
SC_UART8BIT
[1]
RW
Number of data bits.
0: 7 data bits.
1: 8 data bits.
SC_UARTRTS
[0]
RW
nRTS is an output to control the flow of serial data sent to the EM342 from another
device. This bit directly controls the output at the nRTS pin (SC_UARTFLOW must
be set and SC_UARTAUTO must be cleared). When this bit is set, nRTS is asserted
(pin is low, 'XON', RS232 positive voltage); the other device's transmission is
enabled. When this bit is cleared, nRTS is deasserted (pin is high, 'XOFF', RS232
negative voltage), the other device's transmission is inhibited.



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