 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ] S. DEAN            ]    PASS PROGRAM NOTE        ]     100572       ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: 11/17/87   ]
 ] IBM/282-7364       ]      RELEASE NOTE( )        ]                  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] OI07 AND SUBS                 ]  CREW ( )  GROUND (X)  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC ( )  VU (X)  SM/PL ( )] G9                              ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA:  DEDICATED-DISPLAYS, I/O, CYCLE-WRAP             ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: V4.13, V4.6                                    ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ]        POSSIBLE PMU OI/PL RAM I/O CYCLE WRAP IN G9                  ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]  IT IS POSSIBLE TO HAVE MULTIPLE "PMU OI/PL RAM I/O CYCLE WRAP"     ]
 ] GPC ERRORS IN G9 IF HDA IS ACTIVE DURING THE DYNAMIC DRIVE TEST     ]
 ] (SPEC 100, ITEM 24).  THIS OCCURS BECAUSE THE DRIVE TEST ISSUES     ]
 ] A LARGE QUANTITY OF HIGH PRIORITY I/O AT A RATE OF 12.5 HZ.         ]
 ] (PMU OI/PL RAM I/O HAS A LOWER PRIORITY).  IF THIS OCCURS,          ]
 ] A GROUP 7 CODE 13 GPC ERROR WILL BE LOGGED IN THE GPC ERROR LOG     ]
 ] AND ONE CYCLE OF PMU DATA ACQUISITION (SSME POSITION FEEDBACKS,     ]
 ] SSME ISO VALUE DISPLAY DATA FOR SPEC 113) WILL  BE SKIPPED.         ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]USER RESPONSE:                                                       ]
 ]                                                                     ]
 ]  DO NOT PERFORM ANY ACTUATOR MOVEMENT WHICH WOULD REQUIRE SSME      ]
 ]  FEEDBACK DATA (AI MODES; BODY FLAP; RAMP, MAT, FRT ECP'S FOR THE   ]
 ]  SSME AND OMS ENGINES) WHILE THE DDU DRIVE TEST IS IN PROGRESS.     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: WYATT COOPER         DATE 07/12/88]                             ]
 ]    --------------------      ---------]                             ]
 ]SSD: SAM ANKNEY           DATE 07/13/88]                             ]
 ]    --------------------      ---------] R W MOOREHEAD       08/16/88]
 ]PF MGR: ERIC C BINGHAM    DATE 07/14/88]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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