This is a new page covering the iSBC 80/10 Single Board Computer (SBC).
This board was introduced in 1976 provide OEMs with an SBC to begin building systems and applications using the 8080 processor. It was used with additional boards from Intel to expand memory and I/O capabilities. It was the first Intel multibus SBC.
iSBC-80/10 Single Board Computers:iSBC 80/10 Single Board Computer Hardware Reference Manual 76 9800230B
Additional boards to make a complete system:iSBC 032/048/064KB RAM Board Hardware Reference Manual Jan 79 9800488B
I restored a system based on this SBC as described below:Restoration of an iSBC-80/10-based system [19 Jul 15]
These Intel SBCs would not run the Intel MDS OS nor the ISIS-II OS. It would require special versions of these to run modified for the I/O port assignments. The boards also required a modification to disable the onboard ROM and RAM. I took the queue from the iSBC 80/24 board, which used one bit of one of the 8255s to disable ROM and RAM. The ROM maps at address 0H which has to be RAM for any of the OSs to operate. The RAM has to be disabled because it overlays external RAM, and the external RAM is the only RAM available for DMA operations from the disk controller boards.
I was able to port CP/M-80 Version 2.2 to operate on this with an iSBC 064 RAM board and iSBC 202 MMFM Floppy Disk Controller. I have also ported a CP/M-80 Version 2.2 to operate on this with an iSBC 064 RAM board and iSBC 208 DSDD FM/MFM Floppy Disk Controller.CP/M-80 V2.2 Source for Intel System 80/10
Last updated: 20 November 2017