7
CONTENTS
Contents
Chapter
Page
1. Specifications ...........................................................................................................8
2. Introduction ............................................................................................................9
2.1 Overview ............................................................................................................9
2.2 Technical Description ....................................................................................10
2.2.1 Interrupt Status Port (ISP) ..................................................................10
2.2.2 Connector Pin Assignments ................................................................11
3. Configuration ........................................................................................................13
3.1 Address Selection............................................................................................13
3.2 Jumper Selections ..........................................................................................15
3.3 IRQ Selection ..................................................................................................15
3.4 Interrupt Modes..............................................................................................16
3.5 Clock Modes....................................................................................................17
3.6 Baud Rates and Divisors for the “DIV1” Mode ............................................19
3.7 Baud Rates and Divisors for the “DIV2” Mode ............................................20
4. Installation .............................................................................................................21
4.1 Installing the Adapter in Your Operating System.........................................21
4.1.1 Windows 3.1x ..........................................................................................21
4.1.2 Windows 95/98.......................................................................................21
4.1.3 Windows NT ...........................................................................................21
4.2 Installing the Hardware ..................................................................................21
5. Troubleshooting....................................................................................................23
Appendix A: The RS-232 Interface............................................................................24
Appendix B: Asynchronous Communications..........................................................25
Appendix C: Circuit-Board Diagram ........................................................................27
