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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / 40ced4acffb548d2cb16d0d549cf83d3be5827bf
commit40ced4acffb548d2cb16d0d549cf83d3be5827bf[log] [tgz]
authortinybot <bot@tinytapeout.com>Sun Dec 04 08:00:57 2022 +0000
committertinybot <bot@tinytapeout.com>Sun Dec 04 08:00:57 2022 +0000
tree7a45abe168447e089c34fc0575d6d6e896bff781
parent209d84dbde00810ba3cdccec906801d82d601b2a [diff]
harden project [skip ci]
29 files changed
tree: 7a45abe168447e089c34fc0575d6d6e896bff781
  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.