zoomable die shot from John McMaster

Very nice! Thanks for the link! I suppose the projects have been renumbered since project 17 on the efabless site is a pseudo random number generator which looks a bit different.

yes I think this one is the test chip full of DFRAM

@User: The projects are numbered by MPW run and slot, so the 00010001 value is two hex fields, the first 0001 is the MPW run and the second 0001 is the project slot.

Thanks for clearing that up. That had actually been my first guess, but then I thought that it couldn't be as with 4 bits for the project slot you can't count to 40 (or more). Project 1 in MPW1 is the vdp-lite sprite generator and that also seems to have a large empty area while the chip in photo is nearly fully occupied.

It's hex, not binary. And the project numbers are still not exactly related to slot numbers. Slot 1 on MPW-one was occupied by Caravel-plus. You can translate the project ID code to the slot number and then find the project at, e.g., https://foss-eda-tools.googlesource.com/third_party/shuttle/mpw-one/slot-001/+/refs/heads/main .

How silly of me - the value is read by the PicoRV32 as a 32 bit number. And just the other day I was commenting on a project that was using human readable engraving on a disc with binary and saying they should have used hex instead (perhaps with a 7 segment font to make it easier to also be machine readable). Thanks for the details!

@User: Maybe next time I should do it in a QR code format!

I am sure some future archeologist will appreciate a human readable label, though you can always have both