Project:Infotec displays
From London Hackspace Wiki
Donated by Nottinghack, who have a project page with pictures. Further information posted by NortHACKton and Leeds.
Firmware
NEC 27 (25), which is almost identical to a 186, with register bank switching, DMA and a simple buffering (macro) system for interrupts. User manual and with opcodes and with chart.
| External bus | 8-bit |
| Clock speed | 8MHz? |
| DMA channels | 2 |
| Serial | built-in |
| Timers | 2 |
| Internal data area | 256 bytes based at xxe00 |
| Special functions | 256 bytes based at xxf00 |
Disassembly at http://github.com/marksteward/Infotec/.
Tom Wyatt's confirmed that the data segment around 0xfaa4d contains the fonts http://pastebin.com/nUY9CKE2.
