details see
<http://processors.wiki.ti.com/index.php/General_hardware_design/BGA_PCB_design>
+[[shakti_libre_riscv.jpg]]
+
## Targetting full Libre Licensing to the bedrock.
The only barrier to being able to replicate the masks from scratch
# Proposed Interfaces
+* Plain [[GPIO]] multiplexed with a [[pinmux]] onto (nearly) all other pins
* RGB/TTL up to 1440x900 @ 60fps, 24-bit colour
* 2x 1-lane SPI
* 1x 4-lane (quad) SPI
is a Watchdog Timer and others.
* <https://github.com/sifive/freedom/blob/master/src/main/scala/everywhere/e300artydevkit/Platform.scala>
Pinmux ("IOF") for multiplexing several I/O functions onto a single pin
+* <https://bitbucket.org/casl/c-class/src/0e77398a030bfd705930d0f1b8b9b5050d76e265/src/peripherals/?at=master>
+ including AXI, DMA, GPIO, I2C, JTAG, PLIC, QSPI, SDRAM, UART (and TCM?). FlexBus, HyperBus and xSPI to
+ be added.
List of Interfaces: