+------------------------------------------------------------------------------+
|    C O #       |  DATE APPROVED:                   |  DATE WRITTEN:          |
|    3822        |  1996-02-23 09:32                 |  1995-11-29 16:02       |
+------------------------------------------------------------------------------+
|           MARKETING NUMBER                     P-NUMBER                      |
|               4220                                186                        |
|               4220W                               192                        |
+------------------------------------------------------------------------------+
|OLD REVISION             NEW REVISION           DESCRIPTION                   |
|FA00084-A22              FA00084-A23            COUGAR2 EPROM                 |
|FA00085-A22              FA00085-A23            COUGAR2 EPROM (FLASH)         |
|SX00086-A22              SX00086-A23            COUGAR2 MEMORY DNLD           |
|SX00087-A22              SX00087-A23            COUGAR2 FLASH DNLD            |
+------------------------------------------------------------------------------+
|--SYMPTOM/CAUSE/SOLUTION SECTION--                                            |
|                                                                              |
REASON FOR CHANGE(S) : (Be specific)

Symptom : SCSI bus hangs.

Cause   : When handling a message in phase change for a disconnect and the
        front end chip was an NCR 53c710, the code would acess the device as
        an NCR 53c720 causing register corruption.

Solution: Correct the code to check the config structure before doing register
        accesses.