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SERIAL CONTROL MODULE: UART
UART Modem Control register
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UART Modem Control register
Address: 9001_1110 / 9001_9110 / 9002_1110 / 9002_9110
The UART Modem Control register controls the modem signals.
Register
Register bit
assignment
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UART Line Status register
Address: 9001_1114 / 9001_9114 / 9002_1114 / 9002_9114
The UART Line Status register reads the line status register. This register is used for
diagnostic purposes only.
13121110987654321015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
Reserved
Reserved
RTSReservedLLBAFE DTR
Bits Access Mnemonic Reset Description
D31:06 N/A Reserved N/A N/A
D05 R/W AFE 0 Automatic flow control
0 RTS controlled by bit 1 (RTS)
1 RTS controlled by 4-byte RX FIFO status
D04 R/W LLB 0 Local loopback enable bit
TX data looped back to RX data
0 Disabled
1Enabled
D03:02 N/A Reserved N/A N/A
D01 R/W RTS 0 Controls the Request to Send (RTS) output
0RTS = 1
1RTS = 0
D00 R/W DTR 0 Controls the Data Terminal Ready (DTR) output
0DTR = 1
1DTR = 0