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4.13 MDIO User PHY Select Register 0 (USERPHYSEL0)
The MDIO user PHY select register 0 (USERPHYSEL0) is shown in Figure 40 and described in Table 33.
Figure 40. MDIO User PHY Select Register 0 (USERPHYSEL0)
31 16
Reserved
R-0
15 8 7 6 5 4 0
Reserved LINKSEL LINKINTENB Reserved PHYADRMON
R-0 R/W-0 R/W-0 R-0 R/W-0
LEGEND: R = Read only; R/W = Read/Write; -n = value after reset
Table 33. MDIO User PHY Select Register 0 (USERPHYSEL0) Field Descriptions
Bit Field Value Description
31-8 Reserved 0 Reserved
7 LINKSEL Link status determination select bit. Default value is 0, which implies that the link status is
determined by the MDIO state machine. This is the only option supported on this device.
6 LINKINTENB Link change interrupt enable. Set to 1 to enable link change status interrupts for PHY address
specified in PHYADRMON. Link change interrupts are disabled if this bit is set to 0.
0 Link change interrupts are disabled
1 Link change status interrupts for PHY address specified in PHYADDRMON bits are enabled
5 Reserved 0 Reserved
4-0 PHYADRMON PHY address whose link status is to be monitored.
88
C6472/TCI6486 EMAC/MDIO SPRUEF8F–March 2006–Revised November 2010
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