CC2430
Peripherals
U1UCR (0xFB) – USART 1 UART Control
: USART
Bit
Name
Reset
R/W
Description
7
0
R0/W1 Flush unit. When set, this event will immediately stop the current
operation and return the unit to idle state.
FLUSH
6
5
0
0
R/W
R/W
UART hardware flow enable. Selects use of hardware flow control
with RTS and CTS pins
FLOW
0
1
Flow control disabled
Flow control enabled
UART data bit 9 contents. This value is used 9 bit transfer is
enabled. When parity is disabled, the value written to D9is
transmitted as the bit 9 when 9 bit data is enabled.
D9
If parity is enabled then this bit sets the parity level as follows.
0
1
Even parity
Odd parity
4
0
R/W
UART 9-bit data enable. When this bit is 1, data is 9 bits and the
content of data bit 9 is given by D9and PARITY
BIT9
.
0
1
8 bits transfer
9 bits transfer
3
2
0
0
R/W
R/W
UART parity enable.
PARITY
SPB
0
1
Parity disabled
Parity enabled
UART number of stop bits. Selects the number of stop bits to
transmit
0
1
1 stop bit
2 stop bits
1
0
1
0
R/W
R/W
UART stop bit level
STOP
0
1
Low stop bit
High stop bit
UART start bit level. The polarity of the idle line is assumed the
opposite of the selected start bit level.
START
0
1
Low start bit
High start bit
CC2430 Data Sheet (rev. 2.1) SWRS036F
Page 151 of 211
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