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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / ae4d7ef032a0181c078bcf7584e390ee6b9480d2
commitae4d7ef032a0181c078bcf7584e390ee6b9480d2[log] [tgz]
authorGreg Davill <greg.davill@gmail.com>Mon Dec 05 07:18:10 2022 +1030
committerGreg Davill <greg.davill@gmail.com>Mon Dec 05 07:18:10 2022 +1030
tree4594833003da6efc52da3a191d9be7d9e1c21b58
parent07b4d7e86ede2bbe21e9c81c18e221e99684985d [diff]
rtl: fix invalid gpio config
1 file changed
tree: 4594833003da6efc52da3a191d9be7d9e1c21b58
  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.