Incor User's Guide Ethernet Media Access Controller TMS320C645x DSP

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4.15 MDIO User PHY Select Register 1 (USERPHYSEL1)
MDIO Registers
The MDIO user PHY select register 1 (USERPHYSEL1) is shown in Figure 29 and described in Table 28 .
Figure 29. MDIO User PHY Select Register 1 (USERPHYSEL1)
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/W = Read/Write; R = Read only; - n = value after reset
Table 28. MDIO User PHY Select Register 1 (USERPHYSEL1) 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 PHY address whose link status is to be monitored
4-0 PHYADRMON PHY address whose link status is to be monitored
Ethernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO)80 SPRU975B – August 2006
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