LAN8710A Datasheet, PDF (59/82 Pages) SMSC Corporation – Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR Technology

4.2.8
Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR^® Technology
Datasheet
Mode Control/Status Register
Index (In Decimal): 17
Size:
16 bits
BITS
DESCRIPTION
15:14
13
12:10
9
8:7
6
5:2
1
0
RESERVED
EDPWRDOWN
Enable the Energy Detect Power-Down mode:
0 = Energy Detect Power-Down is disabled
1 = Energy Detect Power-Down is enabled
RESERVED
FARLOOPBACK
Enables far loopback mode (i.e., all the received packets are sent back
simultaneously (in 100BASE-TX only)). This bit is only active in RMII mode.
This mode works even if the Isolate bit (0.10) is set.
0 = Far loopback mode is disabled
1 = Far loopback mode is enabled
Refer to Section 3.8.9.2, "Far Loopback," on page 43 for additional
information.
RESERVED
ALTINT
Alternate Interrupt Mode:
0 = Primary interrupt system enabled (Default)
1 = Alternate interrupt system enabled
Refer to Section 3.6, "Interrupt Management," on page 34 for additional
information.
RESERVED
ENERGYON
Indicates whether energy is detected. This bit transitions to “0” if no valid
energy is detected within 256ms. It is reset to “1” by a hardware reset and
is unaffected by a software reset. Refer to Section 3.8.3.2, "Energy Detect
Power-Down," on page 40 for additional information.
RESERVED
TYPE
RO
R/W
RO
R/W
RO
R/W
RO
RO
R/W
DEFAULT
-
0b
-
0b
-
0b
-
1b
0b
SMSC LAN8710A/LAN8710Ai
59
DATASHEET
Revision 1.4 (08-23-12)