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Product Description
This document describes the hardware and software installation of the
WDl006V-SRl and WDl006V-SR2, 16-bit disk controllers for the
IBM* Personal Computer AT* or AT compatible computer. Both
controllers' Winchester interface conform to 2,7 RLL specifications.
The WD1006V-SR2's floppy controller supports four floppy drive
types (360 KB, 720 KB, 1.2 MB and 1.44 MB). Do not confuse the
number of drive types with the number of drives that can be connected
to the WD1006V-SR2. Only two internal drives can be connected to
the WD1006V-SR2. The WDl006V-SR2 supports "intelligent" 1.44
MB media drives. These intelligent drives obtain the drive type and
data rate from the drive's media and do not depend upon the state of J1
pin 2 for this information.
Installation
This section briefly describes the installation of the controller board. Do
NOT use the WD1006V-SR2 with an AT configured, AT compatible,
or XT* diskette controller in the same system. Removal of the extra
diskette controller is necessary for proper operation of the WD1006V-
SR2. Disabling the diskette controller on the WD1006V-SR2 is NOT
possible.
A minor incompatibility exists between the WD10006V-SRl (or
Wl006V-SR2) and the WD1003-WAH (WD1003-WA2). If the drive
contains more than eight heads, e.g. a 16 head drive, the WD1003-
WAH numbers heads 8 through 15 as 0 through 7 in the media's ID
fields. The WD1006V controllers number heads 8 through 15 as 8
through 1.5. Backup and reformat the drive to solve this problem. This
problem is not manifested in drives with less than eight heads.
CAUTION
Handle the controller board by the ends of the board. Some of the
chips are static sensitive and damage may occur if the board is
incorrectly handled.
1. Verify the controller jumper settings. Only verify the settings.
Modification of the standard factory settings is rarely necessary. Modify
jumpers only under the direction of a qualified individual; i.e. your
dealer. Figure 1 illustrates the jumper locations for both controller
boards. Refer to Table 1 for further information on jumper settings.
2. Verify termination on last drive. Verify proper setting of drive select
switches. Consult the drive technical manual for proper drive
termination and selection information.
*IBM and AT are registered trademarks and XT is a trademark of
International Business Machines Corporation.
3. Remove the blank expansion slot bracket. Put the bracket
away and save it for possible future use. The screw will be
used to hold the new controller board in place. It is best to
locate the controller in the closest available expansion slot
relative to the drive.
4. Attach the drive control cable connector to J5.
5. Attach the control cable to drive(s).
6. Attach drive 0 data cable connector to J4.
7. Attach data cable to drive 0.
8. Attach drive 1 data cable connector to J3.
9. Attach data cable to drive 1.
10. For WDl006V-SR2 users, attach the diskette cable
connector to J1.
11. For WD1006V-SR2 users, attach cable to floppy drive(s).
12. Attach the Winchester activity cable connector to J6.
13. Check the cable connections carefully . Ensure that pin 1
on the board connectors mates with pin 1 on the cable
connectors. Pin 1 on the cable connectors is usually on the
color coded side.
14. Install the controller board into the expansion slot. Make
sure that the board is seated properly by pressing down on
both ends of the board. Secure the board with the bracket
screw.
15. Remove or disable any other floppy controller in your
system. The WD floppy controller can not be disabled.
All jumpers OFF for factory defaults.
Figure 1. Jumper Locations
TABLE 1. JUMPER SETTINGS
Jumper/
Pin number
Position
Description
W1/
1-2
OFF
Winchester(s) in
latched mode.
ON
Winchester(s) in
non-latched mode.
3-4
OFF
Four byte ECC.
Factory default.
ON
Seven byte ECC
5-6
OFF
Cacheing enabled.
ON
Cacheing disabled.
W2
1-2
OFF
BIOS enabled.
ON
BIOS disabled.
W3/
1-2
OFF
Primary Winchester
I/O addresses
ON
Secondary Winches-
ter I/O addresses
W4/
1-2
OFF
Primary floppy I/O
addresses
ON
Secondary floppy I/O
addresses
W5/
1-2
OFF
Single speed drives.*
ON
Dual speed drives.*
W6/
1-2
OFF
Bracket ground op-
eration not used.
ON
Connects bracket to
board ground
*
Do not combine single and dual speed drives in the same system.
