Hi there,
I've been trying to enable the test modes for verifying the design with the Tektronix automotive ethernet test solution: https://download.tek.com/datasheet/TekExpress-Automotive-Ethernet-1000BASE-T1-100BASE-T1-MSO6-Datasheet-61W614083.pdf?_gl=1*yzq23h*_gcl_aw*R0NMLjE3NjIyOTcxMzIuQ2owS0NRaUE1YWJJQmhDYUFSSXNBTTMtekZVNmIyZ2JiNmtXNDdWckM0RkdjMmJ3aHc1RjlhRTdjM1E1Y1FYeHFzQWdmN09mV3ZKR0Uxd2FBcUpIRUFMd193Y0I.*_gcl_au*MjEyNDg0NzM0LjE3Njc3MzIyNTguMTEyMjY2NjE4Ny4xNzY3NzM0MzU1LjE3Njc3MzQzNTQ.*_ga*NTI2NzE1NjE2LjE3NTkzNzg4OTQ.*_ga_1HMYS1JH9M*czE3Njg2MDI4NTYkbzIwJGcwJHQxNzY4NjAyODU3JGo1OSRsMCRoMA..
Using the DP83TG720 EVM to start, it seems when I use the USB-MDIO tool that writing to this test mode register (TEST_MODE_CONTROL register at offset 1904h) and reading it back results in the register still reading as 0000h.
Any idea why that is?
