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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / a513925ce3452c0861422a3059772fa1ff96a6c5
commita513925ce3452c0861422a3059772fa1ff96a6c5[log] [tgz]
authorGreg Davill <greg.davill@gmail.com>Mon Dec 05 21:22:12 2022 +1030
committerGreg Davill <greg.davill@gmail.com>Mon Dec 05 21:22:12 2022 +1030
treea8ca4b23c2a03cf6e17252645241ca897bf2f11c
parentda29cfe0e6732275435aceb348881a2ff8339034 [diff]
gds: Add sram256x8m8wm1 with V5_Xtor fix
2 files changed
tree: a8ca4b23c2a03cf6e17252645241ca897bf2f11c
  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.