Early WD Controller and/or chip specs

Any one have copies of the WD controller specifications for the PC/AT?? It would be a WD1003 model probably the ?WAH version but any version would be appreciated. The following is a list of some known versions WD1002A-WX1: Half-slot PC XT, PC AT compatible Winchester controller (MFM). WD1002-27X: RLL 2,7 half-slot PC XT, PC AT compatible Winchester controller. WD1002A-27X: Half-slot PC XT compatible Winchester controller. RLL, SMT, no jumper selection required. WD1003-WAH: Winchester controller with PC AT compatible interface. RLL 2,7 version available (-RAH). WD1003S-WAH: Surface mount technology version of WD1003-WAH. RLL 2,7 version available (-RAH). WD1003-WA2: Winchester and floppy controller board with PC AT interface. RLL 2,7 version available (-RA2). WD1003A-WA2: PC XT form factor version of WD1003-WA2. RLL 2,7 version available (-RA2). The corresponding WD AT interface chips are probably the WD11C00C-22 and the WD12C00A-22 -? copies of their specs would also be appreciated.? I happen to have the WD11C00C-17 spec, which is the XT version. Tom