IBM System/7 Functional Characteristics - All about the IBM 1130 ...

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Bit 5—No Record FoundIt should be determined if the file-data-check error bit (ISWEX bit 4) is also present. If itis present, any pertinent parameters (such as sector ID) should be saved and the operationretried. After 16 unsuccessful retries, the user should be notified.If the file-data-check error bit is not present, it should be determined if the missingaddress mark indicator (ISWEX bit 1) is present. If it is present, a recalibrate operationshould be performed and the original sequence of operations retried. After 16 unsuccessfulretries, the user should be notified.Verify that the heads are positioned over the desired track by executing the load andread next secto •ID sequence. Retry the original operation and notify the user after 16unsuccessful retries.Bit 6—Incorrect Length RecordThis condition may not be treated as an error by the system program, in which case norecovery procedure is recommended. If this condition is considered an error, however,the suggested procedure is to validate the DCB and retry the operation.Bit 8—Storage Data CheckRead the residual address from the subchannel address register. The command to do thisis an immediate read with a modifier of hex F (1111). The command can be used by theprogram to determine the contents of the data address register which is held and updatedby the 5022 subchannel. Use this address to determine what storage location had badparity and in which sector the error occurred. Validate that location and retry theoperation beginning with the sector where the error occurred. Another procedure wouldbe to validate the entire data table in storage and retry the operation in its entirety.Bit 9—Program CheckValidate the address of the DCB given on the start I/O command. If correct, validate theDCB by correcting the word count and/or the data address fields and retry the operation.Bit 14—Interface Data CheckRead the residual address to determine in which sector the error occurred. Validate theDCB and retry the operation five times. If unsuccessful, issue a halt I/O command to thedisk module, to reset the system, and retry once. If unsuccessful, assume that a hardfailure condition exists.Bit 15—Read ISWEXAny necessary parameters should be saved and the interrupt status word extension (ISWEX)should be read. If the ISWEX indicates a hardware error (bit 2 present), a halt I/O commandshould be issued to the module and then the original sequence of operations retried.After one unsuccessful retry, the user should be notified.Recovery from ISWEX ErrorsBit 0—File Data UnsafeA halt I/O command should be issued to the module and the original operation retried.After five unsuccessful retries, the user should be notified.Bit 1—Missing Address MarkIt should be verified that the disk has been initialized by reading the next sector ID on adifferent track or cylinder. If the disk has been initialized, an attempt should be made torestore the address mark by reformatting the original track with its original identifiers.Then, a sector ID should be read from the reformatted track. If unsuccessful, the usershould be notified that the track is defective.
Bit 2—Equipment CheckA halt I/O command should be issued to the module and the original sequence of operationsretried. After five unsuccessful retries, the user should be notified.Bit 3—Seek CheckA recalibrate operation (seek in the reverse direction with N 224) should be performedand the original seek operation retried. After 16 unsuccessful retries, the user should benotified.Bit 4—File Data CheckIt should be determined if the no-record-found bit (ISW bit 5) is also present. If it ispresent, any pertinent parameters (such as sector ID) should be saved and the operationretried. After 16 unsuccessful retries, the user should be notified. If the no-record-foundbit is not present, the original sequence of operations should be retried. After 16 unsuccessfulretries, the user should be notified.IBM 5022 Disk Storage Module 15-31
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GA34-0003-7File No. S7-00IBM System
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ContentsPrefaceChapter 1. Introduct
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Flagging 15-26Track Initialization
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PrefaceThis reference manual is a s
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IntroductionCHAPTER CONTENTSSystem/
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Figure 1-1. IBM 5028 Operator Stati
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• One or two analog output points
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Power Failure and Thermal WarningPo
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IBM 5010 Processor ModuleCHAPTER CO
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StorageProcessorAACycleSteal/ Featu
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The processor does not recognize in
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DATA FORMATSInput/output data can b
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The absolute form can be obtained i
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Accumulators (ACC 0 to ACC 3)Page o
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Overflow IndicatorThe overflow indi
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System/7 InterruptionsCHAPTER CONTE
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Level 1interruptionprocessing'.ros
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Interruption Mask Register and Summ
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Page of GA34-0003-6,-7As Updated Au
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The accumulator associated with the
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Page of GA34-0003-6, -7As Updated A
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The summary mask isturned on; sampl
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Processor InstructionsCHAPTER CONTE
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InstructionMnemonic'OperationcodeLo
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' rrrI !Mil,. '11111E1 luluINSTRUCT
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"" ',Pli iI 1114111111111111 111111
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Load Immediate (PLI)0 5 8 15Op code
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Store Accumulator (PST)0 5 8 15Op c
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vow wow. •1•01111111111111111
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NMI INNI 1111=111111 IM11111■1111
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11111 !III VIII I 1101 1,411111111,
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I i 1111111'1Np■I0111m PIP ,ili11
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Example:Word in accumulator 0110 11
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Exclusive ORing occurs only between
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Shift Left Circular (PSLC)0 5 8 11
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Shift Right Arithmetic (PSRA)0 5 8
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Example:PB instruction(R = 110 spec
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Branch and Link Long (PBALL)0 5 8 1
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Branch Conditional (PBC►0 5 8 9 1
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Branch and Unmask Long (BUL) (5010
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Skip Conditional (PSKC)0 5 8 9 15Op
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Example:0 5 8 15PAS instruction(loc
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Load from Register (PLR)0 5 8 15Op
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Load Processor Status (PLPS)0 5 8 1
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Write IAR Backup (WIB) (5010 Proces
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Store Indicators (STI) (5010 Proces
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Executing the OR-to-mask instructio
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the process position. If the system
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Read Protect Key (RPK)0 5 8 11 16 2
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Module address field:Module address
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11111E111111111 M11111111•11111 1
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1111111111111111111111■11•11111
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Sixteen bits of additional module i
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1 REG 1---LEVEL0 10 0 2 1 20 0 0 03
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CTL CHK (Control Check) LightThis l
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1111■111111,11,11N I IIIADDRESS L
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CHECK CONTROL SwitchThis three-posi
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START KeyPressing the start key cau
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The processor module contains two 1
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6-4 GA34-0003II I 1 1 III 111 1111
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.11.1111111.111 MP I 111.10114P III
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1111 Minn. 11111111R !VW IMF" !PFLI
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The ACCA must be selected in order
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111.1111 111111 N uData and control
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I II III• 1111111111111111 1•11
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Significant Bits Meaning7* Data set
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I■ 0=11 1111111 MEM11 1111111111
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". — •• 11•111•MI !IF lim
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V IIF 1,1 NM IICONTROL CHARACTERS A
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Character SynchronizationCharacter
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Bit 1-Reserved.Bit 2-Transmit Opera
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1,114plilloi 1110 1111 1111.11 VI P
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1 1 - 1111=111111111 111M 1111 111
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The 5028 Operator Station (Figure 9
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Thickness Paper - .004 + .0003" (0,
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Character bit position 84 Tape move
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If the operator station motor is no
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Feed Tape and Print0 5 8 11 16 20 2
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Read 1SW0 5 8 11 16 20 26 31Op code
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The 5014 Analog Input Module Model
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Convert Analog Input with External
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Read ISW0 5 8 11 16 20 26 31Op code
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10-8 GA34-0003
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11111811111111.1.1.14.111.1111I II
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" 11, 141MINMIIIIF I WPM P IP !! 11
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Read and Convert ADC0 5 8 11 16 20
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Device Status Word (DSW): The 16 bi
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1411111111,1111111111n 111The 5014
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Convert Analog Input with External
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12-6 GA34-0003
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The 5012 Multifunction Module Model
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MODULE DEVICE ADDRESSESANALOG INPUT
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The range bits (RRR) in the control
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H1111111111111 1111.111111HIVRead A
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I/0 CommandsThe prepare I/O and hal
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Data stored in the register can hav
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If a particular amplifier gain was
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' 14 111•141111111111111011114111
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Read Digital Input Reference Regist
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Digital Input Groups Without Proces
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CIA ^iN1i Ma IIl AMINNNP u 11.!..11
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Write Analog Output Holding Registe
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1111111■11111111101=11111.1111111
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=111111111111111111 1 11 1 11111111
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DataThe data byte contains either d
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Read CommandsAll read commands are
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Write Null Acknowledge: This code (
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Area Station Local I/O Guidance Cha
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2791/2793 Adapter Critical timingIn
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BeginDSC* 05Write(AS enters data mo
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oww1111111111111111111111111,1,, V
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Bit 15 in the R register can be set
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The 5013 Digital I/O Module Model A
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The prepare I/O command is used as
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Read Digital Input RegisterO 5 8 11
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Set Digital Input Interrupt Control
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DIGITAL OUTPUT CONTROLThe Digital O
Page 244 and 245: The 2792 Remote Communications Cont
Page 246 and 247: Data TransmissionInformation is tra
Page 248 and 249: The functions of the five bytes in
Page 250 and 251: Code nameHexBit patternResponse Com
Page 252 and 253: Read End Acknowledge: This code (he
Page 254 and 255: Begin Diagnostic: This code (hexade
Page 256 and 257: Page of GA34-0003-6, -7As Updated A
Page 258 and 259: Command SequencesThe 2790 Control m
Page 260 and 261: An area station requiring service l
Page 262 and 263: Set Diagnostic Mode0 5 8 11 16 20 2
Page 264 and 265: 14-32 GA34-0003
Page 266 and 267: FUNCTIONAL DESCRIPTIONThe IBM 5022
Page 268 and 269: FILE ORGANIZATIONEach surface of ea
Page 270 and 271: Sector Identifier FormatEach identi
Page 272 and 273: If fewer than 128 words are to be t
Page 274 and 275: When the IPL operation starts, the
Page 276 and 277: Recalibrate Operation: A recalibrat
Page 278 and 279: 1111 11 I 111111111111WRead Initial
Page 280 and 281: If an error is detected during a da
Page 282 and 283: None of the data read is transferre
Page 284 and 285: Error and Status ConditionsErrors d
Page 286 and 287: Significant Bits Meaning5* No recor
Page 288 and 289: Significant Bits Meaning3 Seek chec
Page 290 and 291: FLAGGINGThe condition of a track su
Page 292 and 293: Track Initialization ProceduresThe
Page 296 and 297: 15-32 GA34-0003
Page 298 and 299: I III 1111111111111111111111111111
Page 300 and 301: Interruptions to System/7The progra
Page 302 and 303: Initiate Read0 16 21 24 31111111Add
Page 304 and 305: Device Status Word (DSW): The 16-bi
Page 306 and 307: 16-10 GA34-0003
Page 308 and 309: The IBM 5024 I/O Attachment Enclosu
Page 310 and 311: III 1111•1111111111•1111111 III
Page 312 and 313: 11111 1 11•1111111111111111111111
Page 314 and 315: Reset 5024The reset 5024 resets the
Page 316 and 317: 2502 Card Reader Translate TableA 2
Page 318 and 319: I/O Transfer BlockThe address of th
Page 320 and 321: Status Word 1.0 152502 status buffe
Page 322 and 323: Status Word 2.0 15Status word 1% St
Page 324 and 325: 1 1 111111111111111111111111111•1
Page 326 and 327: IMP P 1111,1111.11,11311111 I MP 11
Page 328 and 329: 11 11 1111111111 1 1111111111111111
Page 330 and 331: algaaaagIrlug",',/"'", BeltPosition
Page 332 and 333: • Disable Attention Interrupt 110
Page 334 and 335: Status Word 1.0 15aStatus word 1•
Page 336 and 337: Status Word 2.15Status word 1N+1Res
Page 338 and 339: Interrupt PresentationThe printer a
Page 340 and 341: 17-30 GA34-0003
Page 342 and 343: Add immediateMnemonicExecutiontime
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Alter storage key (provided only wi
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BranchMnemonicExecutiont i me (ns)O
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Branch conditionalMnemonicExecution
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Exclusive OR registertMnemonicExecu
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Level exitMnemonicExecutiontime (ns
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Load immediateMnemonicExecutiontime
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OR registerMnemonicExecutiontime (n
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Read protect key (provided only wit
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1111■11111■111111111 1 11111111
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StopMnemonicExecutiontime Ins)Op co
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SubtractMnemonicExecutiontime (ns)O
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A-26 GA34-0003
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PIO instruction Function ModifierDe
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1111111■111111PIO instruction Fun
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Valid responses to 2790 read comman
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Interrupt status wordsDevice0 1 2 3
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Device status word (2502, 5024 with
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11.1 11111 11110•11111111111.1111
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5028ConsoleShift/ 5028BSCAACCAContr
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5028ConsoleShift/ 5028BSCAACCAContr
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triNtitTIBitRanges and bit values (
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.••■• III II III 11111.•
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E-6 GA34-0003
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Verifydata beforewrite analogoutput
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Prepare I/OSet referenceregisterYes
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F-6 GA34-0003IIII•1111■•■
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G-2 GA34-0003
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analog signal resolution (continued
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cycle steal feature data flow 2-3cy
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forced interruption control, digita
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initial program load (IPL) to Syste
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111111•1111111111■ IllO (OR) in
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ead, 5022 Disk Storage Module (cont
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11111111111111111■1 1111111 11111
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X-16 GA34-0003
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GA34-0003-7Your comments, please ..
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I 111111111111111.1 I MEM II 1 1111
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