               Release Notes for CS4231/CS4232/CS4236/CS4237B Version 1.65
               -----------------------------------------------------------

Release Date:  2/25/97
-------------
Version Numbers:
----------------
1.65    CWCONFIG.SYS
1.65	CWAUDIO.SYS
1.65	CWVAUDIO.SYS
1.51    CS32BA11.DRV
1.51    CSFM.DRV

79	CS4232 Microcode
6	CS4232A Microcode
55	CS4236 Microcode
None 	CS423xB (Patch must exist in EEPROM or Hostload)

1.0	IBM OPL3 FM Synthesis MIDI
1.0     IBM MPU-401 Midi

List Of Files:
--------------
AMPMXMCD DLL        88,407  07-12-95 10:38a
AUDIOIF  DLL       192,328  07-11-95  2:12p
BSAUDRES DLL         1,380  02-19-97  2:46p
CARDINFO DLL         3,076  02-19-97  2:46p
CLOCK01  SYS         4,048  08-12-96  3:06a
CLOCK02  SYS         4,114  08-12-96  3:06a
CONTROL  SCR         1,655  02-19-97  2:47p
CS32BA11 DRV       115,456  06-05-96  3:16p
CS32BA11 INI         5,146  07-09-96  5:28p
CSFM     DRV        20,784  05-23-96  2:14p
CWADD    INI           311  07-11-96  2:01p
CWAUDIO  SYS        77,444  02-19-97  2:44p
CWAUDIO  HLP           771  02-19-97  2:46p
CWAUDIO  INI         2,236  12-20-96 10:50a
CWAUDIO  BIN         6,973  10-07-96  9:53a
CWCONFIG SYS        53,248  02-19-97  2:44p
CWINST   DLL        43,310  01-02-97  3:54p
CWVAUDIO SYS        11,264  02-19-97  2:42p
FILES    SCR         1,878  11-13-96 11:24a
MIDIMAP  CFG        38,386  07-11-96  2:30p
MIDIPLAY ICO         4,395  02-10-95  5:27p
MPU401   SYS        13,318  05-13-96  8:28p
MPURES   DLL         1,040  06-20-95  7:29p
OPL3     SYS        23,879  10-20-94  4:49p
OPL3RES  DLL         1,040  01-16-95  3:38p
READ     ME         19,681  11-25-96  2:06p
RESOURCE SYS        39,992  08-12-96  1:10a
RMINFO   DLL        22,847  08-12-96  1:13a
RMVIEW   EXE        32,503  08-12-96  1:13a
TIMER0   SYS         3,026  08-09-96  1:32a


File Summary:
-------------
BSAUDRES.DLL    Audio adapter resource DLL.  It is used by Minstall.

CARDINFO.DLL    Audio adapter DLL.  It is used by Minstall.

CWINST.DLL	Installation Support DLL.

CWAUDIO.HLP     Installation help file used by Minstall.

CONTROL.SCR     Master Control File for Crystal Audio Installation.  
		It is used by MInstall and created by oemetup.cmd.
		The default control.scr contains control.all.

FILES.SCR	Filelist control file for CS4231, CS4232, and CS4236. 
		It is used by control.all during Minstall.
		
CWCONFIG.SYS    Configuration Driver For Asics on CS4231 Audio Boards.
		Configuration Driver for CS4232/CS4236.

CWAUDIO.SYS     Physical Device Driver for Audio in OS/2.

CWAUDIO.INI     Alternate method for obtaining settings for CSBSAUD.SYS.

CWVAUDIO.SYS    Virtual Device Driver for managing control of audio
                device between OS/2, Win-OS/2 and a Dos Session.

CWAUDIO.BIN	Data file containing microcode for the CS4232, CS4232A,
		and CS4236.  It is used by CWCONFIG.SYS.  

READ.ME         Installation and driver information. 

IBM OPL3/MPU-401 Files:
---------------
OPL3.SYS	OS/2 audio physical device driver for IBM OPL3 FM Midi.

OPL3RES.DLL	IBM OPL3 device support DLL.

MPU401.SYS	OS/2 audio physical device driver for IBM MPU-401 MIDI.

MPURES.DLL	IBM MPU-401 device support DLL.

MIDIPLAY.ICO    Desktop ICON For MIDI Player.

TIMER0.SYS	OS/2 highres timer driver.

CLOCK01.SYS	OS/2 ISA clock driver that supports the highres timer.

CLOCK02.SYS	OS/2 MCA clock driver that supports the highres timer.

IBM Misc. Files:
----------------

AMPMXMCD.DLL    Used for Mixer Driver functionality.
    
AUDIOIF.DLL     Used for Mixer Driver functionality.

RESOURCE.SYS    IBM PnP Resource Manager  

RMVIEW.EXE      IBM PnP Resource Manager  

RMINFO.DLL      IBM PnP Resource Manager  

WIN-OS/2:
---------
CS32BA11.DRV	CS4232/CS4236 Windows 3.1 wave, aux, and mixer driver.

MIDIMAP.CFG     MIDIMAP Configuration that contains preconfigured 
		midimaps for the Crystal FM driver.  

CSFM.DRV        Crystal FM MIDI driver.

CS32BA11.INI    File used by CS32BA11.DRV to save configuration 
		and feature information.       

CWADD.INI       Sndsys Settings For System.ini

General Information Version 1.65  25-Feb-1997:
----------------------------------------------
1.  The main addition to this kit is Full Duplex Support 
in Warp and in Merlin.  Also, this release adds mixer 
support for the mono out signal.  The following 
shows the specific changes in the configuration
driver, physical device driver, virtual device driver,
install, and Win-OS/2 drivers.

CONFIGURATION Driver --- CWCONFIG.SYS:
--------------------------------------
1) Updated 8052 microcode in cwaudio.bin.  
11-18-96 9:36am 8225 bytes cwaudio.bin
However, the configuration driver still only downloads firmware
for CS4232 and CS4236. 
2) Updated configuration driver to handle larger microcde size (12KB).
3) Corrected driver name (as registered to resource manager) CWCONFIG.SYS
4) Upgrade version to 1.65 from 1.60.

AUDIO Driver --- CWAUDIO.SYS:
-----------------------------
1) Full duplex support added:
   a) Supports independent data types
   b) Requires same sampling frequency
2) Added mixer configuration options for Mono-In to Mono-Out connection
   and mute/unmute of monoout signal.  Both effect codec register I26.
   Command line:   INI file:
   MBY:1           MonoBypass=ON   Directly connect Mono-In to Mono-Out
   MOM:1           MonoOutMute=ON  Mute/UnMute MonoOut.
3) Corrected driver name (as registered to resource manager) CWAUDIO.SYS
4) Added CODEC PnP Control Port to list of resources (Resource manager)
5) Upgrade version to 1.65 from 1.60.

Virtual Device Driver --- CWVAUDIO.SYS:
---------------------------------------
1) Fixed bug on DOS session create of multiple sessions concurrently.
      Parsing and setting BLASTER env variable in instance data.
2)  Upgrade version to 1.65 from 1.60.

INSTALL:
--------
1) IBM high resolution timer driver (timer0.sys) is installed only if
   it was not already installed.
2) Erases obsolete timer driver, \mmos2\timer0.sys
3) Added support for WinOS2-J installation.
4) Modified Read.me installation section.
5) Upgrade version to 1.65 from 1.60.

WIN-OS/2 Drivers:
-----------------
1) There were no changes in the Crystal wave and fm
drivers in Win-OS/2.



