Western Digital WD1007A-WA2 User Manual Download | Manualshive

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USER’S GUIDE

WD1007A-WAH/WA2
Winchester/Floppy
Disk Controller

Important Information

Do Not Discard

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Summary of Contents for WD1007A-WA2

Page 1: ...USER S GUIDE WD1007A WAH WA2 Winchester Floppy Disk Controller Important Information Do Not Discard...

Page 2: ...generally have two modes of operation soft sector and hard sector At this time the WDl007A WA2 offers only the hard sector mode of operation In most systems the BIOS and or operating system supports o...

Page 3: ...he WDl007A WA2 and the WDl007A WAH Table 2 provides the various address select ranges and corresponding jumper settings The WDlOO7A WAH can be used as a field replacement board for existing WD1005WAH...

Page 4: ...in data cable to J3 connector for Drive 1 9 Connect the cable s to the proper hard disk drive s 10 Attach the 34 pin daisy chain cable to J4 connector 11 Connect the cable to the floppy drive s 12 Att...

Page 5: ...5 No Jumper Floppy Address Select 3FX W6 2 3 Floppy Drive Select W7 1 2 WD1007 Mode W8 No Jumper W8 No Jumper Chassis Ground Disconnected W9 No Jumper W9 No Jumper Digital Input Register Unlatched W10...

Page 6: ...s 1F0 lF7 and 3F6 3F7 To select the secondary hard disk address range 170 177 and 376 377 jumper the Wl2 connector Diagnostic Register Latch Control When installed jumper connection Wl0 enables the di...

Page 7: ...PC AT environment W14 No Jumper The translation mode provides two types of physical to logical translation Wl4 Jumper Physical to logical translation by the firmware is disabled Wl5 Jumper Connection...

Page 8: ...r Cut Wl1 Jumper Connection Jumper Wl1 is the disk change input signal and must be jumpered if floppy drives are installed Mounting Bracket Jumper Jumper connection W9 allows grounding of the module m...

Page 9: ...rs required for your ESDI drive use the set up diskette for your system to see if the appropriate number of heads cylinders and sectors per track are listed If they are not listed the system BIOS prob...

Page 10: ...parameters for drive 0 and INT 46 corresponds to the address of the current selected parameters for drive 1 To see the current selected parameters for drive 0 the proper command at the DEBUG prompt i...

Page 11: ...DERS XXX HEADS XX PRECOMP CYLINDER XXX SPT XX Change Drive Types 1 Low Level Format 2 Surface Analysis 3 Verify Drive 4 Enter Defect List 5 Exit and Reboot 6 Enter Choice 1 6 3 To execute a function s...

Page 12: ...tion is written to the spare sector on cylinder 0 head 0 The sector skew which is fixed at two allows the controller to maintain a 1 1 interleave across all head boundaries Sector skewing is a method...

Page 13: ...7 SPT 4 3 WDFMT Western Digital provides a low level format utility that allows you to prepare the drive for use by the system The program includes routines for low level formatting disk verify surfac...

Page 14: ...first sector on the next head The minimum sector skew factor for proper performance of the WDl007A is 2 Different applications may require different skew factors to optimize performance Spare Sector...

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