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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / dc24d54a166d86ae4896e1a7b0fdb6d12f3c3582
commitdc24d54a166d86ae4896e1a7b0fdb6d12f3c3582[log] [tgz]
authortinybot <bot@tinytapeout.com>Sun Dec 04 21:06:40 2022 +0000
committertinybot <bot@tinytapeout.com>Sun Dec 04 21:06:40 2022 +0000
tree9c3affed0b8890e658e3462207667b6c177af2ee
parentae4d7ef032a0181c078bcf7584e390ee6b9480d2 [diff]
harden project [skip ci]
27 files changed
tree: 9c3affed0b8890e658e3462207667b6c177af2ee
  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.