Ryan Brooks @hack.net · Aug 16 Picked up an odd ISA card - I wanted it for the TMS34020 graphics chip - but it's worth taking a look at. It's a component of a Siemens Sirona (?) X-ray system. ~1998 vintage. The back has all MELF components, looks like it would be expensive to produce. No DAC, but uC and UART. #electronics
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Yeah, small and big CPLD.
Two LEDs that come on RED, but they do appear to have a second color.. Anyone know anything about this card?
Weird-ass resistor networks. Never seen this package before.
The DRAM and VRAM. I will have to see where the 'serial' video data goes, if anywhere. I would've thought there would be a DAC, or at least some high-speed stuff to get digital video off the board, but maybe not? There's nothing that looks it could xmit digital video, and also nothing analog.
The chip I'll eventually remove:
VRAM, DRAM, UART, small microcontroller, the TMS34020 GPU, and an ISA<->34020 bridge chip that provides (memory) windowed access into the 34020's address space.