Rainbow-electronics W90P710CDG Manual de usuario descargar pdf (Pagina 128)

W90P710CD/W90P710CDG

BITS DESCRIPTIONS

[12:8] PHYAD

The PHY Address keeps the address to differentiate which external

PHY is the target of the MII management command.

[7:5] Reserved -

[4:0] PHYRAD

The PHY Register Address keeps the address to indicate which

MDCCR [23:20] MDC CLOCK PERIOD MDC CLOCK FREQUENCY

MII Management Function Frame Format

In IEEE Std. 802.3 clause 22.2.4, the MII management function is defined. The MII management

function is used for the purpose of controlling the PHY and gathering status from the PHY. The MII

management frame format is shown as follow.

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Rainbow-electronics W90P710CDG Manual de usuario Pagina 128