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MDIO Registers

4.5 MDIO Link Status Change Interrupt (Unmasked) Register (LINKINTRAW)

The MDIO link status change interrupt (unmasked) register (LINKINTRAW) is shown in Figure 30 and

described in Table 27.

Figure 30. MDIO Link Status Change Interrupt (Unmasked) Register (LINKINTRAW)

31 16

Reserved

R-0

15 2 1 0

Reserved LINKINTRAW

R-0 R/W1C-0

LEGEND: R = Read only; R/W = Read/Write; W1C = Write 1 to clear, write of 0 has no effect; -n = value after reset

Table 27. MDIO Link Status Change Interrupt (Unmasked) Register (LINKINTRAW)

Field Descriptions

Bit Field Value Description

31-2 Reserved 0 Reserved

1-0 LINKINTRAW 0-3h MDIO Link change event, raw value. When asserted, a bit indicates that there was an MDIO link

change event (that is, change in the LINK register) corresponding to the PHY address in the

USERPHYSEL register. LINKINTRAW[0] and LINKINTRAW[1] correspond to USERPHYSEL0 and

USERPHYSEL1, respectively. Writing a 1 will clear the event and writing a 0 has no effect.

0 No MDIO link change event.

1 An MDIO link change event (change in the LINK register) corresponding to the PHY address in

MDIO user PHY select register n (USERPHYSELn).

SPRUFI5B–March 2009–Revised December 2010 Ethernet Media Access Controller (EMAC)/Management Data Input/Output

(MDIO)

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