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

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The ACCA must be selected in order to present received data to the System/7 programor to transmit data to the host processor. If the ACCA receives or transmits an EOTcharacter, the ACCA is reset to an unselected condition. When the ACCA recognizes itsaddress in the addressing sequence, it transmits a positive or negative acknowledgementdepending on the position of the host attach switch on the operator console and whetherinterruption requests are permitted. If the host attach switch is set in the enable and IPLposition, the ACCA transmits a positive acknowledgement. If the switch is in the enableposition and interruption requests are permitted, the ACCA transmits a positive acknowledgement.If the switch is in the enable position and interruption requests are prevented,the ACCA transmits a negative acknowledgement to the host processor. The ACCA doesnot send an acknowledgement if the host attach switch is set in the disable position. TheEOT character in the sequence mentioned previously is not required if the host processoraddresses another device and receives a negative acknowledgement prior to addressingthe System/7.The ACCA is reset to an unselected condition if the first character received from thehost (after the addressing sequence) is not an EOA character.System/7 can transmit to the host processor only when the ACCA has been polled bythe host processor. The first polling sequence of characters from the host processor mustbe EOT, ADDRESS, and SPACE (see Figure 7-3). If the first polling sequence is acknowledgedwith a negative response, subsequent polling sequences can be ADDRESS andSPACE until a positive acknowledgement is received by the host.When the ACCA recognizes its address in the polling sequence, it presents an interruptionrequest to the processor with ISW bit 0 set. The System/7 program would normallystart a transmit sequence of EOA, text, EOB as a result of this interruption request. If thefirst character in the message transmitted is not EOA, the ACCA is reset to an unselectedcondition and no more interruption requests are presented to the processor. Message endingsequences are the same as sequences for the ACCA without the station control option.HostNon-switched lineSystem/7YAK(2)orEOTNAK EOA EOB EOT EOT0 Address SP C.) 0OLRC 0 0 Address SPA A A A A TextTextText0 0 L RC 0 LRCEOA EOB EOB0YAKorC.)NAK®NAKFigure 7-3. Station control (polling) operation7-6 GA34-000311111111111111111111MI 1111411114 ger II I
I/0 COMMANDSThe ACCA is programmed using the prepare I/O command as described in Chapter 4 under"Input/Output Instruction." Data is transferred between the processor and the ACCA byimmediate read and immediate write commands. The setting of the modifier field bits inan immediate command further defines the operation to be performed.All I/O commands to the ACCA must have a device address of 001100 and a moduleaddress of 000000.The terms "status" and "mode" as used in the I/O command descriptions have differentmeanings. While in either transmit or receive mode, the ACCA accumulates a logitudinalredundancy check (LRC) character. Figure 7-4 shows a line control sequence forboth point-to-point and dial-up operation. These methods are the same but in dial-upoperation a communication line is connected and disconnected through a data set.The ACCA enters transmit status upon receiving a transmit control command in orderto establish a data link and to block any possible incoming data. The ACCA enters transmitmode when it detects an EOA character in a transmit character command. This EOAcharacter is not accumulated in the LRC register, but any following EOA characters areconsidered as data and accumulated in the LRC register.The ACCA enters receive status when it detects a start bit from a remote processor.The ACCA returns to standby mode after the received character is deserialized unlessthat character is an EOA. If the character is an EOA, the ACCA enters receive mode. ThisEOA character is not accumulated in the LRC register, but any following EOA charactersreceived are considered as data and accumulated in the LRC register.The ACCA is in standby mode when it can accept transmit commands or receive data.When in standby mode, the ACCA decodes all characters received except upshift anddownshift (including line noise) and presents the decoded characters to the program asdata.The ACCA exits from transmit or receive mode and then enters standby mode underany one of these conditions:• The ACCA detects an end-of-transmission (EOT) character• A time-out interruption request occurs• A reset ACCA command is issued by the System/7 programPoint-to-pointEOA EOB EOB EOB EOT NAK YAK YAKSystem/7 or host LRC LRC le/LRCNon-switched lineText ....Text A Text A A A A A A AWWWW.—,W Text Text w Text wSystem/7 or host LRC v LRC LRCNAK YAK YAK EOA EOB EOB EOB EOTDial-upSystem/7 or host ConnectSwitched networkAAANAKYAK EOA EOB E.OT DialLRC Disconnect— ....- .......-....,A A Text AW Text W W r •• w W.--,Text.-.■-■System/7 or host I Dial A U LRC LRC DisconnectEOA EOB EOB EOTYAKFigure 7-4. Point-to-point and dial-up operationAAsynchronous Communications Control Attachment 7-7!ANIWWWIAii,111W.1.11111••••
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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
Page 80 and 81: Branch Conditional (PBC►0 5 8 9 1
Page 82 and 83: Branch and Unmask Long (BUL) (5010
Page 84 and 85: Skip Conditional (PSKC)0 5 8 9 15Op
Page 86 and 87: Example:0 5 8 15PAS instruction(loc
Page 88 and 89: Load from Register (PLR)0 5 8 15Op
Page 90 and 91: Load Processor Status (PLPS)0 5 8 1
Page 92 and 93: Write IAR Backup (WIB) (5010 Proces
Page 94 and 95: Store Indicators (STI) (5010 Proces
Page 96 and 97: Executing the OR-to-mask instructio
Page 98 and 99: the process position. If the system
Page 100 and 101: Read Protect Key (RPK)0 5 8 11 16 2
Page 102 and 103: Module address field:Module address
Page 104 and 105: 11111E111111111 M11111111•11111 1
Page 106 and 107: 1111111111111111111111■11•11111
Page 108 and 109: Page of GA34-0003-6, -7As Updated A
Page 110 and 111: Sixteen bits of additional module i
Page 112 and 113: 1 REG 1---LEVEL0 10 0 2 1 20 0 0 03
Page 114 and 115: CTL CHK (Control Check) LightThis l
Page 116 and 117: 1111■111111,11,11N I IIIADDRESS L
Page 118 and 119: CHECK CONTROL SwitchThis three-posi
Page 120 and 121: START KeyPressing the start key cau
Page 122 and 123: The processor module contains two 1
Page 124 and 125: 6-4 GA34-0003II I 1 1 III 111 1111
Page 126 and 127: .11.1111111.111 MP I 111.10114P III
Page 128 and 129: 1111 Minn. 11111111R !VW IMF" !PFLI
Page 132 and 133: 111.1111 111111 N uData and control
Page 134 and 135: I II III• 1111111111111111 1•11
Page 136 and 137: Significant Bits Meaning7* Data set
Page 138 and 139: I■ 0=11 1111111 MEM11 1111111111
Page 140 and 141: ". — •• 11•111•MI !IF lim
Page 142 and 143: V IIF 1,1 NM IICONTROL CHARACTERS A
Page 144 and 145: Character SynchronizationCharacter
Page 146 and 147: Bit 1-Reserved.Bit 2-Transmit Opera
Page 150 and 151: 1,114plilloi 1110 1111 1111.11 VI P
Page 154 and 155: 1 1 - 1111=111111111 111M 1111 111
Page 156 and 157: The 5028 Operator Station (Figure 9
Page 158 and 159: Thickness Paper - .004 + .0003" (0,
Page 160 and 161: Character bit position 84 Tape move
Page 162 and 163: If the operator station motor is no
Page 164 and 165: Feed Tape and Print0 5 8 11 16 20 2
Page 166 and 167: Read 1SW0 5 8 11 16 20 26 31Op code
Page 168 and 169: The 5014 Analog Input Module Model
Page 170 and 171: Convert Analog Input with External
Page 172 and 173: Read ISW0 5 8 11 16 20 26 31Op code
Page 174 and 175: 10-8 GA34-0003
Page 176 and 177: 11111811111111.1.1.14.111.1111I II
Page 178 and 179: " 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
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The 2792 Remote Communications Cont
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Data TransmissionInformation is tra
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The functions of the five bytes in
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Code nameHexBit patternResponse Com
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Read End Acknowledge: This code (he
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Begin Diagnostic: This code (hexade
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Page of GA34-0003-6, -7As Updated A
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Command SequencesThe 2790 Control m
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An area station requiring service l
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Set Diagnostic Mode0 5 8 11 16 20 2
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14-32 GA34-0003
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FUNCTIONAL DESCRIPTIONThe IBM 5022
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FILE ORGANIZATIONEach surface of ea
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Sector Identifier FormatEach identi
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If fewer than 128 words are to be t
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When the IPL operation starts, the
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Recalibrate Operation: A recalibrat
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1111 11 I 111111111111WRead Initial
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If an error is detected during a da
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None of the data read is transferre
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Error and Status ConditionsErrors d
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Significant Bits Meaning5* No recor
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Significant Bits Meaning3 Seek chec
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FLAGGINGThe condition of a track su
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Track Initialization ProceduresThe
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Bit 5—No Record FoundIt should be
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15-32 GA34-0003
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I III 1111111111111111111111111111
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Interruptions to System/7The progra
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Initiate Read0 16 21 24 31111111Add
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Device Status Word (DSW): The 16-bi
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16-10 GA34-0003
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The IBM 5024 I/O Attachment Enclosu
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III 1111•1111111111•1111111 III
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11111 1 11•1111111111111111111111
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Reset 5024The reset 5024 resets the
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2502 Card Reader Translate TableA 2
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I/O Transfer BlockThe address of th
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Status Word 1.0 152502 status buffe
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Status Word 2.0 15Status word 1% St
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1 1 111111111111111111111111111•1
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IMP P 1111,1111.11,11311111 I MP 11
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11 11 1111111111 1 1111111111111111
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algaaaagIrlug",',/"'", BeltPosition
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• Disable Attention Interrupt 110
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Status Word 1.0 15aStatus word 1•
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Status Word 2.15Status word 1N+1Res
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Interrupt PresentationThe printer a
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17-30 GA34-0003
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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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