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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / 6b35f4a50e556ebfc074fd678b3a460644b529bf
commit6b35f4a50e556ebfc074fd678b3a460644b529bf[log] [tgz]
authortinybot <bot@tinytapeout.com>Mon Dec 05 14:46:10 2022 +0000
committertinybot <bot@tinytapeout.com>Mon Dec 05 14:46:10 2022 +0000
treebdc509190f5fd1364dad274a7a5799b5d0397e52
parentdde4a146ec4b0cf129b247202d7eab979fb0f6e4 [diff]
harden project [skip ci]
37 files changed
tree: bdc509190f5fd1364dad274a7a5799b5d0397e52
  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.