Measurement-computing COM232/8AT Manual do Utilizador Página 1

COM232/8ATEight Channel Asynchronous Serial Communications AdapterUser’s Guidep/n 1000-0901 rev 1.1, March 1998Released per EO# 2053R5IOtech, Inc. ●

10 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1Character Timeout (FIFO Mode only) − Indicates no characters have been removed from, or inp

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 11Line Control RegisterThe bit definitions for the Line Control Regist

12 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1MODEM Control RegisterThe bit definitions for the MODEM Control Register are as follows:MOD

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 13Line Status RegisterThe bit definitions for the Line Status Register

14 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1MODEM Status RegisterThe bit definitions for MODEM Status Register are as follows:MODEM Sta

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 15FIFO Interrupt Mode OperationWhen the receiver FIFO and receiver int

16 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1Installation for Windows95TMBefore Installing the COM232/8AT Board:1. On the COM232/8AT bo

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 17The .inf file will now install. When the installation is complete,

18 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1Installation for WindowsNTTM Version 4.0 OnlyIf your application makes use of WindowsNT 4.0

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 19− User Notes

2 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1ContentsOverview ...

20 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 3OverviewThe COM232/8AT eight-channel asynchronous serial communicatio

4 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1AddressingThe COM232/8AT uses eight I/O address locations per port. Full 16-bit address dec

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 5InterruptsThe COM232/8AT is capable of supporting 11 interrupt levels

6 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 7Output ConfigurationsNote: The COM232/8AT board is an RS-232-C DTE (D

8 COM232/8AT User’s Guide March 1998 1000-0901, rev 1.1If you need to connect two DTEs together, you must make use of a customized cable known as a

1000-0901, rev 1.1 March 1998 COM232/8AT User’s Guide 9EDSSI MODEM Status Interrupt − When set (logic 1), enables interrupt