Output (MDIO) Module User's Guide

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

MDIO Registers

The MDIO link status change interrupt (unmasked) register (LINKINTRAW) is shown in Figure 31 and

described in Table 29 .

Figure 31. 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 29. 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 (USERPHYSEL n).

74 Ethernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO) SPRUEQ6 – December 2007

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