JAJSC33G February 2015 – October 2022 DP83867CR , DP83867IR
PRODUCTION DATA
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The PHY is powered down but access to the PHY through MDIO-MDC pins is retained. This mode can be activated by asserting external PWDN pin or by setting bit 11 of BMCR (Register 0x00).
The PHY can be taken out of this mode by a power cycle, software reset, or by clearing the bit 11 in BMCR register. However, the external PWDN pin should be deasserted. If the PWDN pin is kept asserted then the PHY remains in power down.