My SJA1105T can`t work normal,i need some help.
I had detect signals at TXD[0:3] from MCU to SWITCH, but i can`t detect signals at TXD[0:3] from SWITCH to PHY.
I had get some information from Software user manual for SJA1105TEL .
I read the Initial device configuration flag register ,it shows the configuration is valid.
I read the Ethernet high-level port status diagnostic counters part 1 ,the N_RXFRM \N_RXFRMSH \N_TXFRM\ N_TXFRMSH which show the tx/rx frames counter is always 0.