LM3S2776 Datasheet, PDF (510/785 Pages) Texas Instruments – Stellaris® LM3S2776 Microcontroller

Universal Asynchronous Receivers/Transmitters (UARTs)
Bit/Field
7
6:3
2
1
0
Name
LBE
reserved
SIRLP
SIREN
UARTEN
Type
R/W
RO
R/W
R/W
R/W
Reset
0
0
0
0
0
Description
UART Loop Back Enable
If this bit is set to 1, the UnTX path is fed through the UnRX path.
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
UART SIR Low Power Mode
This bit selects the IrDA encoding mode. If this bit is cleared to 0,
low-level bits are transmitted as an active High pulse with a width of
3/16th of the bit period. If this bit is set to 1, low-level bits are transmitted
with a pulse width which is 3 times the period of the IrLPBaud16 input
signal, regardless of the selected bit rate. Setting this bit uses less power,
but might reduce transmission distances. See page 504 for more
information.
UART SIR Enable
If this bit is set to 1, the IrDA SIR block is enabled, and the UART will
transmit and receive data using SIR protocol.
UART Enable
If this bit is set to 1, the UART is enabled. When the UART is disabled
in the middle of transmission or reception, it completes the current
character before stopping.
510
November 17, 2011
Texas Instruments-Production Data