DescriptionResetTypeNameBit/Field
ISO 7816 Smart Card Support
DescriptionValue
The UART operates in Smart Card mode.1
Normal operation.0
The application must ensure that it sets 8-bit word length (WLEN set to
0x3) and even parity (PEN set to 1, EPS set to 1, SPS set to 0) in
UARTLCRH when using ISO 7816 mode.
In this mode, the value of the STP2 bit in UARTLCRH is ignored and
the number of stop bits is forced to 2. Note that the UART does not
support automatic retransmission on parity errors. If a parity error is
detected on transmission, all further transmit operations are aborted
and software must handle retransmission of the affected byte or
message.
0R/WSMART3
UART SIR Low-Power Mode
This bit selects the IrDA encoding mode.
DescriptionValue
The UART operates in SIR Low-Power mode. 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.
1
Low-level bits are transmitted as an active High pulse with a
width of 3/16th of the bit period.
0
Setting this bit uses less power, but might reduce transmission distances.
See page 636 for more information.
0R/WSIRLP2
UART SIR Enable
DescriptionValue
The IrDA SIR block is enabled, and the UART will transmit and
receive data using SIR protocol.
1
Normal operation.0
0R/WSIREN1
UART Enable
DescriptionValue
The UART is enabled.1
The UART is disabled.0
If the UART is disabled in the middle of transmission or reception, it
completes the current character before stopping.
0R/WUARTEN0
July 24, 2012644
Texas Instruments-Production Data
Universal Asynchronous Receivers/Transmitters (UARTs)
OBSOLETE: TI has discontinued production of this device.
