crypto_router_pinmux.mdwn

   1 # NGI POINTER Gigabit Ethernet Router Pinmux
   2
   3 * NLnet page: [[nlnet_2021_crypto_router]]
   4 * Top-level bugreport: <https://bugs.libre-soc.org/show_bug.cgi?id=589>
   5 * Main page: [[crypto_router_asic]]
   6
   7 # Expected Package
   8 * QFP 200 pin?
   9
  10 # Functionality and Pincount (NOT FINAL, LIKELY TO CHANGE):
  11
  12 Essential:
  13
  14 * 5x RGMII Ethernet - 5x20 = 100 pins [[shakti/m_class/RGMII/]]
  15 * 2x USB ULPI - 2x12 = 24 pins [[shakti/m_class/ULPI/]]
  16 * SDRAM - 39 pins [[shakti/m_class/sdram/]]
  17 * UART - 2 pins
  18 * JTAG - 4 pins [[shakti/m_class/JTAG/]]
  19 * 1.8v Core Power Vdd - 13 pins
  20 * 1.8v Core Power Vss - 13 pins
  21 * 3.3v IO Power Vdd - 10 pins
  22 * 3.3v IO Power Vss - 10 pins
  23 * Reset - 1 pin
  24 * PLL - 5 pins
  25 * SPI - 4 pins [[shakti/m_class/SPI/]]
  26
  27 non-essential:
  28
  29 * GPIO - 16 pins
  30 * EINT - 3 pins
  31 * I2C - 2 pins
  32 * QSPI - Could share with SPI - 6 pins [[shakti/m_class/QSPI/]]
  33 * SD/MMC - Could share with SPI - 4 pins
  34
  35 Total: **256** pins
  36
  37 GPIO, EINT, Vdd, Vss, SDRAM, reset, PLL pin counts come from the LS180 pinmux definitions.
  38
  39 RGMII pinout count comes from [here](https://web.pa.msu.edu/hep/atlas/l1calo/hub/hardware/components/micrel/rgmii_specification_hp_v1.3_dec_2000.pdf)