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CTSEn
RTSEn
Out2
Out1
[15] CTSEn – CTS hardware flow control enable.
1: CTS hardware flow control is enable. Data is only transmitted when the UART1CTS
signal is asserted.
[14] RTSEn – RTS hardware flow control enable
1: RTS hardware flow control is enable. Data is only requested when there is space in
the receive FIFO for it to be received.
[13] Out2
This bit is the complement of the UART Out2 (nUARTOut2) modem status output.
That is, when the bit is programmed to 1, the output is 0.
For DTE this can be used as "Ring Indicator" (RI).
[12] Out1
This bit is the complement of the UART Out1 (nUARTOut1) modem status output.
That is, when the bit is programmed to 1 the output is 0.
For DTE this can be used as "Data Carrier Detect"(DCD).
[11] RTS – Request to send
This bit is the complement of the UART request to send, UART1RTS, modem status
output.
That is, when the bit is programmed to 1 then UART1RTS is LOW.
[10] DTS – Data transmit ready
This bit is the complement of the UART data transmit ready, UART1DTR, modem status
output.
That is, when the bit is programmed to 1 then UART1DTR is LOW.
[9] RXE – Receive enable
If this bit is set to 1, the receive section of the UART is enabled.
Data reception occurs for either UART signals or SIR signals depending on the setting
of the SIREN bit. When the UART is disabled in the middle of reception, it completes
the current character before stopping.
[8] TXE – Transmit enable
1: The transmit section of the UART is enabled,
[7:3] Reserved
[2] SIRLP – SIR low-power IrDA mode
0: low-level bits are transmitted as an active high pulse with a width of 3/16th of the
bit period.
1: low-level bits are transmitted with a pulse width that is 3 times the period of the
IrLPBaud16 input signal, regardless of the selected bit rate.
[1] SIREN – SIR enable
W7500x Reference Manual Version1.1.0
RTS
DTR
RXE
TXE
res
SIRLP
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SIREN
UARTEN
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