HD63265 Floppy Disk Controller Users Manual 2ed Mar89 - Bitsavers

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CHECK INTERRUPTSTATUS commandRead a resultparameterfrom DTRRead SSBOIVC: Invalid command>-No ______ F_D_C-,has an FDD statusFDC has no FDDRead a resultparameterfrom DTRRead PCNFigure 6-34.CHECK INTERRUPT STATUS Command Execution Flowchart40 HITACHI
SPECIFY 1, 2corrunandwrite a corrunandparameterto DTRFigure 6-35.SPECIFY 1, SPECIFY 2 Corrunand Execution FlowchartHITACHI 41
Page 3 and 4: Hitachi 8-Bit MicrocomputerHD63265F
Page 5 and 6: CONTENTSSection 1.General Descripti
Page 7 and 8: SECTION 1.GENERAL DESCRIPTION1.1 IN
Page 9 and 10: . Maximum drive control range:- Num
Page 11 and 12: SECTION 2.PIN DESCRIPTION2.1 PIN CO
Page 13 and 14: Table 2-1.TypePin FunctionsPin No.D
Page 15 and 16: RS(Register Select): RS selects the
Page 17 and 18: They must be tied to low.NC(No Conn
Page 19 and 20: Bit 4BSY (Controller Busy): Bit 4 i
Page 21 and 22: During DMA transfer, in which the F
Page 23 and 24: During polling, if the ready signal
Page 25 and 26: A: Auto precompensationWhen A = 1,
Page 27 and 28: 6.2.6 ESN: End Sector NumberFigure
Page 29 and 30: 6.2.12 STEP: Stepo o o o o o S T E
Page 31 and 32: HOUT: HDUT specifies the time to wa
Page 33 and 34: 6.2.17 PCl, PCO: Precompensation De
Page 35 and 36: INC (Interrupt Code): INC (figure 6
Page 37 and 38: DDA (Deleted Data Address Mark): DD
Page 39 and 40: Commands other than CHECK related a
Page 41 and 42: The above commands do not activate
Page 43 and 44: READ, WRITE,COMPARE commandRead a r
Page 45: CHECK DEVICEWrite a commandparamete
Page 49 and 50: 6.5 COMMAND FUNCTIONS6.5.1 READ DAT
Page 51 and 52: egister within the periods shown in
Page 53 and 54: 6.5.2 READ DELETED DATABit D7 D6 D5
Page 55 and 56: CA byte does not match, only the IN
Page 57 and 58: 6.5.5 WRITE DATABi t D7 D6 D5 D4 D3
Page 59 and 60: HEX 00 is written for the remaining
Page 61 and 62: 6.5.7 WRITE FORMATBi t D7 D6 D5 D4-
Page 63 and 64: 6.5.8 SEEKBit D7 D6 D5 D4- D3 D2 Dl
Page 65 and 66: 6.5.9 RECALIBRATEBit D7 D6 D5 D4- D
Page 67 and 68: Table 6-13.Data Overrun Times8"/S"
Page 69 and 70: 6.5.11 COMPARE LOW OR EQUALBit D7 D
Page 71 and 72: 6.5.13 CHECK DEVICE STATUSBit D7 D6
Page 73 and 74: 6.5.15 SPECIFY 1Bit D7 I D6 I D5 I
Page 75 and 76: 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 and 128:
@tususa. US1. HDIRtupSTEPFigure 10-
Page 129 and 130:
5.0V2.4 kQIS2074 ®All diodesare 1S
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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