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Quatech MPA-200/300, RS-422/485 user manual

Models: RS-422/485 MPA-200/300

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Quatech MPA-200/300, RS-422/485 user manual

Contents

MPA-200/300 QUATECH, INCPage Warranty Information Page Compliances Electromagnetic Emissions Table of Contents Quatech Inc., MPA-200/300 Manual Introduction MPA-200 board drawing Hardware Installation IRQ DMA/DRQSCC General Information Accessing the registers RR2 RR0RR1 RR3WR2 WR0WR1 WR3Baud Rate Generator Programming SCC Data Encoding Methods J5 & J6 Interrupt Level Selection Jumper Block ConfigurationsJ4 Interrupt Configuration IRQ3 IRQ4 IRQ5 IRQ6 IRQ7IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 J10 Transmit DMA Channel SelectionJ11 Receive DMA Channel Selection J7 Line Driver Control SelectionJ8 Synca to Rlen control Synca Rlen OUTAddressing Base Address = 3F8HPage Interrupts Direct Memory Access Page Reqa Configuration Register D1 -RXSRC, Receive DMA Source D0 -TXSRC, Transmit DMA SourceCommunications Register TM ST Llen Rlen Rcken Tcken Rxden TxdenD1 -RECEIVER Enable D0 -TRANSMITTER EnableDTE / DCE Configuration DTE Configuration Rrclk Rtclk Trxca Tclk TtclkDCE Configuration DCE Clock Configuration External Connections DTR DTR/REQA DSR Dcda +RRCLK Trxc Test Mode CTS Ctsa +DSR DcdaTest Mode Null-Modem Cables Connector Notation +TXD,-TXD Circuit AB Signal Ground Connector Notation DgndCircuit CC Data SET Ready DSR Connector Notation +DSR,-DSR Connector Notation +RXD,-RXDCircuit CA Request to Send RTS Connector Notation +RTS,-RTS Connector Notation +RTCLK,-RTCLKConnector Notation +RRCLK,-RRCLK Circuit CB Clear to Send CTS Connector Notation +CTS,-CTSCircuit RL Remote Loopback RL Connector Notation Rlbk Circuit CD DTE Ready DTR Connector Notation +DTR,-DTRCircuit LL Local Loopback LL Connector Notation Llbk Circuit TM Test Mode TM Connector Notation Test Mode Specifications MPA-200/300 Version March