CC2510Fx / CC2511Fx
U1CSR (0xF8) - USART 1 Control and Status
Bit
Field Name
Reset
R/W
Description
7
MODE
0
R/W
USART 1 mode select
0
1
SPI mode
UART mode
6
5
4
RE
0
0
0
R/W
R/W
UART 1 receiver enable
0
1
Receiver disabled
Receiver enabled
SLAVE
FE
SPI 1 master or slave mode select
0
1
SPI master
SPI slave
R/W
0
UART 1 framing error status
0
1
No framing error detected
Byte received with incorrect stop bit level
Note that TCON.URX1IF and U1CSR.RX_BYTEbit will be asserted when the
first stop bit is checked OK, meaning that if two stop bits are sent and the
second stop bit is not OK, this bit is asserted 1 bit duration later than the 2 other
above mentioned bits.
3
2
1
0
ERR
0
0
0
0
R/W
0
UART 1 parity error status
0
1
No parity error detected
Byte received with parity error
RX_BYTE
TX_BYTE
ACTIVE
R/W
0
Receive byte status
0
1
No byte received
Received byte ready
R/W
0
Transmit byte status
0
1
Byte not transmitted
Last byte written to Data Buffer register transmitted
R
USART 1 transmit/receive active status
0
1
USART 1 idle
USART 1 busy in transmit or receive mode
SWRS055F
Page 157 of 241
TI [ TEXAS INSTRUMENTS ]
