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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / 658681205a417ba0643f9264740bf2774a77e6ef
commit658681205a417ba0643f9264740bf2774a77e6ef[log] [tgz]
authorGreg Davill <greg.davill@gmail.com>Sat Dec 03 22:13:10 2022 +1030
committerGreg Davill <greg.davill@gmail.com>Sat Dec 03 22:13:10 2022 +1030
tree37f7207e07e753f11fa3ab19ae8c1462a18459c0
parent7cdc71e4b0e2647f85081182fef88ea5140317bf [diff]
ci: Update cache key
1 file changed
tree: 37f7207e07e753f11fa3ab19ae8c1462a18459c0
  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. verilog/
  16. .gitignore
  17. .gitmodules
  18. configure.py
  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.