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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-001 / dde4a146ec4b0cf129b247202d7eab979fb0f6e4
commitdde4a146ec4b0cf129b247202d7eab979fb0f6e4[log] [tgz]
authorGreg Davill <greg.davill@gmail.com>Tue Dec 06 00:53:13 2022 +1030
committerGreg Davill <greg.davill@gmail.com>Tue Dec 06 00:53:13 2022 +1030
treedae07a889221fa4e4b85d87fce47ca5b5701c4fe
parent04b51ee3d3e8f1258dc60caf4ece37037c4e2965 [diff]
rtl: Adjust rf_ram_if for single port memory

Bump up macro serv_0 size to assist with routing
3 files changed
tree: dae07a889221fa4e4b85d87fce47ca5b5701c4fe
  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.