LAN8720

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Revision as of 23:54, 15 June 2020 by Chao (talk | contribs) (Created page with "== LAN8720 Ethernet with ESP == * Make menu config animation see here. http://www.electrodragon.com/w/File:Makemenu_lan8720.gif Jumper setup * ESP32 IO0 to CLK pin - defau...")
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LAN8720 Ethernet with ESP

Jumper setup

  • ESP32 IO0 to CLK pin - default closed (connected)
  • 10K pull up to CLK pin - default open
  • ESP32 IO17 three-way jumper - default open (not used)
Description Connection Devkitc-left side Devkitc-right side Connection Description
- 3.3V 3.3V GND2 - -
- - EN IO23 MDC -
- - SVP IO22 TXD1 -
- - SVN TXD0 - -
- - IO34 RXD0 - -
- - IO35 IO21 TX_EN -
- - IO32 GND3 GND -
- - IO33 IO19 TXD0 -
- RXD0 IO25 IO18 MDIO -
- RXD1 IO26 IO5 - -
- CRS_DV IO27 IO17 PHY_PWR control the ON/OFF of the crystal power
- - IO14 IO16 - -
- - IO12 IO4 - -
- GND GND IO0 CLK crystal clock pin
- - IO13 IO2 - -
- - SD2 IO15 - -
- - SD3 SD1 - -
- - CMD SD0 - -
- - 5V CLK - -