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README.md

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 ### GPIO Test
 
-* This test is meant to verify that we can send and receive data from YONGA-100M Ethernet through the WISHBONE port. The firmware sends a UDP frame to YONGA-100M Ethernet, then receives a response from YONGA-100M Ethernet.
+* This test is meant to verify that we can send and receive data from YONGA-100M Ethernet through GPIO pins. The firmware sends a UDP frame to YONGA-100M Ethernet, then receives a response from YONGA-100M Ethernet.
 
 To run RTL simulation,