Advantech PCL-740 Spécifications télécharger pdf (Page 23)

20 PCL-740 User's Manual

BASE+4 Modem Control Register (MCR)

bit 0 DTR

bit 1 RTS

BASE+5 Line Status Register (LSR)

bit 0 Receiver data ready

bit 1 Overrun error

bit 2 Parity error

bit 3 Framing error

bit 4 Break interrupt

bit 5 Transmitter holding register empty

bit 6 Transmitter shift register empty

bit 7 At least one parity error, framing error or break

indication in the FIFO

BASE+6 Modem Status Register (MSR)

bit 0 Delta CTS

bit 1 Delta DSR

bit 2 Trailing edge ring indicator

bit 3 Delta received line signal detect

bit 4 CTS

bit 5 DSR

bit 6 RI

bit 7 Received line signal detect

BASE+7 Temporary data register

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 29

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Advantech PCL-740 Spécifications Page 23