Hi all,
we are running a new design with a 83867IR Ethernet Phy. Unfortunately on the TX lines there is NO activity and we cant find out whats happening here.
When inserting the cable , the driver tells "1Gb link" connected, RX clock will change to 125Mhz and some RX lines are toggeling when "pinging" this device from outside, LEDs are blinking.
But - on the TX side - nothing happens . I have compared this to the "older" device we had (83865DVH) , there is some clock seen also on the TX_CLK pin when connected in 1GB Mode.
So - could you please have a quick look on the schematic ? Are we doing here something wrong ? Any idea where to check ?
Any help is appreciated.
Thanks
Herbert