HD63265 Floppy Disk Controller Users Manual 2ed Mar89 - Bitsavers

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WGATEHSEL ;-__________________________________ -JFigure 10-10.Multitrack Write TimingWDATAv}EARLYLATE-----'-"v\7 V----.... 1PWELH@\Figure 10-11.Precompensation TimingFigure 10-12.Fault Reset TimingFigure 10-13.DMA End Timing122 HITACHI
5.0V2.4 kQIS2074 ®All diodesare 1S2074Hor equivalent.Signal00-07All other output pinsexcept IRQ whenIFS = 1Loade = 130 pFR = 10 kQe = 40pFR = 10 kQFigure 10-14.Output Load Circuit for AC Testing5.0VTest point(TRCi pin)1.3 kQ;+; l00pFFigure 10-15. IRQ Load Circuit for AC Testing When IFS 12.4V---l~-0.8V---.JI~-Measurementpoint->r-+-2.4V---,,.......-0.8V2.2V0.8VMeasurementpoint---l~'--2. 2V--I-;--0.8VOutput signalfrom FOeVcc=5V±5%Vss=OVTa =0 to ±70·eInput signalto FOeFigure 10-16.AC Testing Measurement ConditionsHITACHI 123
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Hitachi 8-Bit MicrocomputerHD63265F
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CONTENTSSection 1.General Descripti
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SECTION 1.GENERAL DESCRIPTION1.1 IN
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. Maximum drive control range:- Num
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SECTION 2.PIN DESCRIPTION2.1 PIN CO
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Table 2-1.TypePin FunctionsPin No.D
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RS(Register Select): RS selects the
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They must be tied to low.NC(No Conn
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Bit 4BSY (Controller Busy): Bit 4 i
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During DMA transfer, in which the F
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During polling, if the ready signal
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A: Auto precompensationWhen A = 1,
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6.2.6 ESN: End Sector NumberFigure
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6.2.12 STEP: Stepo o o o o o S T E
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HOUT: HDUT specifies the time to wa
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6.2.17 PCl, PCO: Precompensation De
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INC (Interrupt Code): INC (figure 6
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DDA (Deleted Data Address Mark): DD
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Commands other than CHECK related a
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The above commands do not activate
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READ, WRITE,COMPARE commandRead a r
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CHECK DEVICEWrite a commandparamete
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SPECIFY 1, 2corrunandwrite a corrun
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6.5 COMMAND FUNCTIONS6.5.1 READ DAT
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egister within the periods shown in
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6.5.2 READ DELETED DATABit D7 D6 D5
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CA byte does not match, only the IN
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6.5.5 WRITE DATABi t D7 D6 D5 D4 D3
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HEX 00 is written for the remaining
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6.5.7 WRITE FORMATBi t D7 D6 D5 D4-
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6.5.8 SEEKBit D7 D6 D5 D4- D3 D2 Dl
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6.5.9 RECALIBRATEBit D7 D6 D5 D4- D
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Table 6-13.Data Overrun Times8"/S"
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6.5.11 COMPARE LOW OR EQUALBit D7 D
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6.5.13 CHECK DEVICE STATUSBit D7 D6
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6.5.15 SPECIFY 1Bit D7 I D6 I D5 I
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6.5.17 SLEEPBi t D7I D6 I D5 I D4-
Page 77 and 78: 6.5.19 READ LONGBit D7 D6 D5 D4- D3
Page 79 and 80: 6.5.21 INVALIDBit D'jI D6 I Ds I DI
Page 81 and 82: 6.7 Command Code Rejection6.7.1 Phe
Page 83 and 84: Command Rejection Timing Condition
Page 85 and 86: 6.7.2 CountermeasuresHitachi recomm
Page 87 and 88: STR Check (valid for all commands e
Page 89 and 90: ABORT Command Issue (valid for all
Page 91 and 92: SECTION 7.VFO CIRCUITThe VFO circui
Page 93 and 94: Reset FDCFDC's operationReset SYNC
Page 95 and 96: SECTION 8.WRITE PRECOMPENSATION CIR
Page 97 and 98: 9.2 SYSTEM OPERATION SEQUENCEFigure
Page 99 and 100: 9.3.2 WRITE OperationFigure 9-4 sho
Page 101 and 102: Table 9-1.FDC Data Transfer Timing8
Page 103 and 104: 9.5 FDC CONTROL9.5.1 FDC Operating
Page 105 and 106: CSRS (Ao )RDWRDATAtAH(min)PVVimL On
Page 107 and 108: Since the DACK signal of the FDC ca
Page 109 and 110: 9.6.2 68-Series 8-Bit Bus SystemFig
Page 111 and 112: R/W, CS and RS are sampled at the r
Page 113 and 114: Table 9-3Data Transfer Rate Selecti
Page 115 and 116: HD63265 (FDC)WDATA~----------------
Page 117 and 118: Table 9-5.8" FDD Interface Signals
Page 119 and 120: Table 9-7.3.5" FDD Interface Signal
Page 121 and 122: 10.3 ELECTRICAL CHARACTERISTICS10.3
Page 123 and 124: AC Specification (cant)No. Item Sym
Page 125 and 126: ~ReadcycleWritecycleRS,C S00-07(out
Page 127: @tususa. US1. HDIRtupSTEPFigure 10-
Page 131 and 132: HD63265 User's ManualPublication Da
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HD63265 Floppy Disk Controller Users Manual 2ed Mar89 - Bitsavers

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