DigiWARE Release Notes P/N 93000114H
				      for
			     X* DOS Driver V 4.0.9
		      Operating System Release  2.0.0 - 6.0

			  Software Package   P/N 75000114H
			  Diskettes          P/N 40000673H
						 40000674H
						 40000908
			  Software Manual    P/N 92000114C


				Date 09-01-93



	 1.  Enhancements

	     -  Expanded EBIOS support in INT 14h Function 0h, Initialize a
		Port. See Manual Errata.

	 2.  Limitations

	     -  The driver's INT 14h interface is not 100% compatable with the
		the following DOS drivers and their supported boards:
		xapcm232.sys - PC/X*, xim232mc.sys - MC/Xi, and xim232.sys -
		COM/Xi. If you are using an INT14h application for an earlier
		driver, compare the driver's INT 14h specifications to
		determine if any of the incompatabilities may affect your
		application.

	 3.  Bug Fixes

	     -  Fixed bug in xidoscfg.exe. On the MC/2e board, when the IRQ
		was disabled using the POS configuration utility, xidoscfg.exe
		would display an erroneous IRQ number on the driver config-
		uration screen.

	4.   Manual Errata

	     -  Please note that the DOS driver files are no longer found in
		the root directory of the release diskette, but located in
		the DOS directory. Any manual references to the files being
		located in the root directory is in error.

	      - Expanded EBIOS Support

		Under the EBIOS specification, the highest baud rate
		accessible is 19200. The function was enhanced to provide
		access to 38400, 57600 and 115200 baud rates. For the
		programming interface see INT14.TXT. This enhancement was
		made to permit access to higher baud rates from INT 14h
		based communication programs that only provided selections
		of up to 19200. The driver was changed so that when EBIOS
		support is selected from the XIDOSCFG.EXE configuration
		utility, the following baud rate substitutions are made :



	4.   Manual Errata (continued)


			110      ->     19200
			150      ->     19200
			300      ->     38400
			600      ->     57600
		       1200      ->    115200
		       2400      ->      2400
		       4800      ->      4800
		       9600      ->      9600

		So, for example, to access 57600 support, select EBIOS
		support in XIDOSCFG.EXE and select 600 baud in your
		communication program.