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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / 04b51ee3d3e8f1258dc60caf4ece37037c4e2965
commit04b51ee3d3e8f1258dc60caf4ece37037c4e2965[log] [tgz]
authortinybot <bot@tinytapeout.com>Mon Dec 05 11:13:07 2022 +0000
committertinybot <bot@tinytapeout.com>Mon Dec 05 11:13:07 2022 +0000
tree40c7d4dc97ba5ea94db65bc8138c26e0be391b4a
parenta513925ce3452c0861422a3059772fa1ff96a6c5 [diff]
harden project [skip ci]
27 files changed
tree: 40c7d4dc97ba5ea94db65bc8138c26e0be391b4a
  1. .github/
  2. def/
  3. docs/
  4. gds/
  5. lef/
  6. mag/
  7. maglef/
  8. openlane/
  9. scripts/
  10. sdc/
  11. sdf/
  12. signoff/
  13. spef/
  14. spi/
  15. sram/
  16. verilog/
  17. .gitignore
  18. .gitmodules
  19. info.yaml
  20. LICENSE
  21. Makefile
  22. README.md
README.md

GF180 MPW0 Serv

An award winning CPU design fit into the GF180 MPW0 Shuttle.

To keep the design simple this project places a Serv CPU with a scan-chain around it connecting it's wishbone bus which is a combination of data and instructions out via I/O pins.

Another I/O pin is responsible for handling clock and reset. Operation will run as follows:

  1. Using an external controller, load in default values for the wishbone bus, bring serv out of reset and clock it.
  2. Latch in and scan out the wishbone bus values. Handle any requests.
  3. Scan in data from the request and clock serv.
  4. Goto 2.

In this manner we should be able to implement external peripherals like UARTs, timers, and GPIOs. The external controller can be a microcontroller, FPGA, or the caravel harness SoC.