Ethernet Subsystem Registers
14.5.10.12 MDIO User PHY Select Register 0 (MDIOUSERPHYSEL0)
The MDIO user PHY select register 0 (MDIOUSERPHYSEL0) is shown in
and described in
Figure 14-243. MDIO User PHY Select Register 0 (MDIOUSERPHYSEL0)
31
16
Reserved
R-0x0
15
8
7
6
5
4
0
Reserved
LINKSEL
LINKINTENB
Reserved
PHYADDRMON
R-0x0
R/W-0x0
R/W-0x0
R-0x0
R/W-0x0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 14-262. MDIO User PHY Select Register 0 (MDIOUSERPHYSEL0) Field Descriptions
Bit
Field
Value
Description
31-8
Reserved
0
Reserved.
7
LINKSEL
0-1
Link status determination select. Set to 1 to determine link status using the
MLINK pin. Default value is 0 which implies that the link status is determined by
the MDIO state machine.
6
LINKINTENB
Link change interrupt enable. Set to 1 to enable link change status interrupts for
PHY address specified in PHYADDRMON. 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
PHYADDRMON
0-1Fh
PHY address whose link status is to be monitored.
1482
Ethernet Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated