Update readme.md

srg74 · May 20, 2023 · e4ff673 · e4ff673
1 parent 9284cab
commit e4ff673
Showing 1 changed file with 15 additions and 1 deletion.
diff --git a/Resources/readme.md b/Resources/readme.md
@@ -1,4 +1,5 @@
 # ArduninoEspressif32 ETH library example
+
 ```
 ETH.begin(
         (uint8_t)      phy_addr,       # 1
@@ -8,4 +9,17 @@ ETH.begin(
         (eth_phy_type_t)   type,       # ETH_PHY_LAN8720
         (eth_clock_mode_t) clock_mode  # ETH_CLOCK_GPIO17_OUT
         );
-```
+```
+
+|GPIO|USED BY|COMMENTS|
+|----|-------|--------|
+|GPIO5|Power on/off|Active High signal to power on the LAN7820 IC
+|GPIO17|RMII Clock 50 MHz|Clock sourced from ESP32 APLL
+|GPIO18|PHY MDIO||
+|GPIO19|ETH TXD0||
+|GPIO21|ETH TX_EN||
+|GPIO22|ETH TXD1|
+|GPIO23|PHY MDC||
+|GPIO25|ETH RXD0||
+|GPIO26|ETH RXD1||
+|GPIO27|ETH CRS_DV||