IBM WD1003V MM1 User Manual

USER'S GUIDE  
WD1003V-MM1  
Winchester Disk  
Controller  
WD 1003 V-MM2  
Winchester/Floppy  
Disk Controller  
Important Information  
Do Not Discard  
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.  
TABLE 1. JUMPER SETTINGS  
Jumper/  
Product Description  
This document describes the hardware and software installation of the  
WDl003V-MMl and WDl003V-MM2, 16-bit disk controllers for the  
*
*
IBM Personal Computer AT or AT compatible computer. Both  
controllers' Winchester interface conform to ST506/ST412  
specifications. The WD1003V-MM2 '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 floppy drives that  
can be connected to the WDl003V-MM2. Only two internal floppy  
drives may be daisy chained to J1.) The WDl003V- MM2 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.  
Pin number  
Position  
Description  
W1/  
1-2  
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.  
OFF  
Winchester(s) in  
latched mode.  
ON  
Winchester(s) in  
non-latched mode.  
8. Attach drive 1 data cable connector to J3.  
9. Attach data cable to drive 1.  
3-4  
5-6  
7-8  
OFF  
Four byte ECC.  
ON reserved.  
10. For WDlOO3V-MM2 users, attach the floppy cable  
connector to J 1.  
OFF  
ON  
Cacheing enabled.  
Cacheing disabled.  
Installation  
This section briefly describes the installation of the controller board.  
Do NOT use the WD1003V-MM2 with an AT configured, AT  
11. For WD1003V-MM2 users, attach cable to floppy  
drive(s).  
OFF  
ON  
Format incompatible  
with WD 1003-WAH  
(WD1003-WA2)  
Format compatible  
with WF 1003-WAH  
(WD1003-WA2).  
*
compatible, or XT floppy controller in the same system. Removal of  
the extra floppy controller is necessary for proper operation of the  
WD1003V-MM2. Disabling the floppy controller on the WD1003V-  
MM2 is NOT possible.  
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.  
A minor incompatibility exists between the WDl003V-MM1 (or  
WD1003-WA2) and the WDl003-WAH (or WDl003-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 media's  
ID fields. The WD1003V controllers number heads 8 through 15 as 8  
through 15. To correct this problem, install a jumper on Wl pin 7-8  
when using the WD1003V controller on a drive formatted with the  
WD1003-WAH (WD1003-WA2). This problem is not manifested in  
drives with less than eight heads.  
W3/  
1-2  
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.  
OFF  
ON  
Primary Winchester  
I/O addresses  
Secondary Winches-  
ter I/O addresses  
15. Remove or disable any other floppy controller in your  
system. The WD floppy controller can not be disabled.  
W4/  
1-2  
OFF  
ON  
Primary floppy I/O  
addresses  
Secondary floppy I/O  
addresses  
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.  
W5/  
1-2  
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.  
OFF  
ON  
Single speed drives.**  
Dual speed drives.**  
W6/  
1-2  
OFF  
ON  
Bracket ground op-  
eration not used.  
Connects bracket to  
board ground  
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.  
*Not all jumper headers are installed. Modify jumpers only under the direction of a  
*IBM and AT are registered trademarks and XT is a trademark of  
International Business Machines Corporation.  
qualified individual  
**  
Do not combine single and dual speed drives in the same system.  
All jumpers OFF for factory defaults.  
Figure 1. Jumper Locations  
1
2
3

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