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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / refs/heads/main
commit1aa6a9678d0e5e2b74ba1705010204aef011ccbf[log] [tgz]
authorJeff DiCorpo <jeffdi@efabless.com>Mon Jan 02 13:21:36 2023 -0800
committerJeff DiCorpo <jeffdi@efabless.com>Mon Jan 02 13:21:36 2023 -0800
tree58b6173fd43160c68b93eed9eb3622e9fc6fbe6f
parent2311ae57c4d661cf5405a7f6e352b278b4f3f94b [diff]
update repo
5 files changed
tree: 58b6173fd43160c68b93eed9eb3622e9fc6fbe6f
  1. .github/
  2. def/
  3. docs/
  4. gds/
  5. lef/
  6. mag/
  7. maglef/
  8. mpw_precheck/
  9. openlane/
  10. scripts/
  11. sdc/
  12. sdf/
  13. signoff/
  14. spef/
  15. spi/
  16. sram/
  17. tapeout/
  18. verilog/
  19. .gitignore
  20. .gitmodules
  21. info.yaml
  22. LICENSE
  23. Makefile
  24. 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.