iSXM-101 Xenix 86 extension module for iSBC-86/xx Docs

[Royce Taft]

To those interested,

I scanned and uploaded the documentation contained in the iSXM-101 kit. It can be accessed on the Google Drive share here:

The add on board included in the kit, which is meant to attach to the CPU socket in an iSBC-86/xx, is a iSBC-308/309. It contains a memory management unit with the purpose of implementing memory protection. It has a socket for an 8087 which is included in the kit. The board provides compatibility for Microsoft’s Xenix 86 in System 86/330A and System 380 microcomputers (upgrading them to System 86/330X and System 86/380X). 

The schematics in the hardware manual are not as legible as I would have liked, but that’s the source material with which I was working. 

I haven’t taken high resolution photos of the board yet, but when I do I’ll add them to the folder. 

Regards,

Royce