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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / da29cfe0e6732275435aceb348881a2ff8339034
commitda29cfe0e6732275435aceb348881a2ff8339034[log] [tgz]
authortinybot <bot@tinytapeout.com>Mon Dec 05 10:03:43 2022 +0000
committertinybot <bot@tinytapeout.com>Mon Dec 05 10:03:43 2022 +0000
treec82183c1c49e2df3597eda655153aae888b0cc5c
parent3a830709c02b2965ad3822677212a58c79684e70 [diff]
harden project [skip ci]
27 files changed
tree: c82183c1c49e2df3597eda655153aae888b0cc5c
  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. info.yaml
  19. LICENSE
  20. Makefile
  21. 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.