CC1110Fx / CC1111Fx
U1UCR (0xFB) – USART 1 UART Control
Bit
Name
Reset
R/W
Description
7
FLUSH
0
R0/W1 Flush unit. When set to 1, this event will immediately stop the current
operation and return the unit to idle state.
This bit will be 0 when returning from PM2 and PM3
6
5
FLOW
0
0
R/W
R/W
UART 1 hardware flow control enable. Selects use of hardware flow control
with RTS and CTS pins
0
1
Flow control disabled
Flow control enabled
D9
UART 1 data bit 9 contents. This value is used when 9 bit transfer is
enabled. When parity is disabled the value written to D9 is transmitted as the
9
th bit when BIT9=1.
If parity is enabled then this bit sets the parity level as follows.
0
1
Even parity
Odd parity
4
3
2
1
0
BIT9
0
0
0
1
0
R/W
R/W
R/W
R/W
R/W
UART 1 9-bit data enable
0
1
8 bits transfer
9 bits transfer (content of the 9th bit is given by D9and PARITY.)
PARITY
SPB
UART 1 parity enable
0
1
Parity disabled
Parity enabled
UART 1 number of stop bits
0
1
1 stop bit
2 stop bits
STOP
START
UART 1 stop bit level
0
1
Low stop bit
High stop bit
UART 1 start bit level. The polarity of the idle line is assumed to be the
opposite of the selected start bit level.
0
1
Low start bit
High start bit
SWRS033E
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