DESCRIPTION

Some KSZ8041 devices may exhibit receiver errors after the software power down bit (register 0h, bit 11), is set and then cleared. The problem only occurs following software power down. There is no issue following power up or hardware reset.

END USER IMPLICATIONS

When the failure occurs:

• The RXER pin is asserted randomly

• The RXER counter (register 15h) increments

• The RXER interrupt bit (register 1Bh, bit 6) is set

• 100BASE-TX receive side exhibits errors (transmit side functions properly)

• 10BASE-T transmit and receive function properly

The only ways to exit the failure condition are:

• Cycle power off and on

• Set and clear the software power down bit (this method may resolve the issue, but is not guaranteed)