NGI POINTER Gigabit Ethernet Router Pinmux

• NLnet page: nlnet 2021 crypto router
• bugreport: https://bugs.libre-soc.org/show_bug.cgi?id=739
• Top-level bugreport: https://bugs.libre-soc.org/show_bug.cgi?id=589
• ls180 packaging: https://bugs.libre-soc.org/show_bug.cgi?id=508
• Main page: crypto router asic
• Package Selection page: https://www.greatek.com.tw/product6-en.html
• Source code: https://git.libre-soc.org/?p=pinmux.git;a=blob;f=src/spec/ngi_router.py;hb=HEAD
• Pinout (based on LS180): ngi router

Expected Package

• QFP 256 pin?
• Largest option from Greatek: LQFP-256-0.4mm
  • LQFP
  • 28x28mm size
  • 256 pins
  • 0.4mm pitch
  • 1.0mm lead length
  • body height 1.4mm

Functionality and Pincount (NOT FINAL, LIKELY TO CHANGE):

Essential:

• 5x RGMII Ethernet - 5x18 = 90 pins RGMII
• 2x USB ULPI - 2x12 = 24 pins ULPI
• SDRAM - 39 pins sdram
• UART - 2 pins
• JTAG - 4 pins JTAG
• 1.8v Core Power Vdd - 13 pins
• 1.8v Core Power Vss - 13 pins
• 3.3v IO Power Vdd - 10 pins
• 3.3v IO Power Vss - 10 pins
• Reset - 1 pin
• PLL - 5 pins
• SPI - 4 pins SPI

non-essential:

• GPIO - 16 pins
• EINT - 3 pins
• I2C - 2 pins
• QSPI - Could share with SPI - 6 pins QSPI
• SD/MMC - Could share with SPI - 4 pins

Total: 246 pins (10 spare)

GPIO, EINT, Vdd, Vss, SDRAM, reset, PLL pin counts come from the LS180 pinmux definitions.

RGMII pinout count comes from here

SVG image