Texas Instruments TMS320C645x DSP Benutzerhandbuch
www.ti.com
4.15 MDIO User PHY Select Register 1 (USERPHYSEL1)
MDIO Registers
The MDIO user PHY select register 1 (USERPHYSEL1) is shown in
and described in
.
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.
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.
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