SNLS504E October 2015 – May 2024 DP83867CS , DP83867E , DP83867IS
PRODUCTION DATA
If Auto-Negotiation is disabled by MDIO access, and the user desires to restart Auto-Negotiation, this could be accomplished by software access. Bit 12 of BMCR (register address 0x00) should be cleared and then set for Auto-Negotiation operation to take place.
If Auto-Negotiation is disabled by strap option, Auto-Negotiation can not be reenabled.