LAN8710A Datasheet, PDF (65/82 Pages) SMSC Corporation – Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR Technology

4.2.14
Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR^® Technology
Datasheet
PHY Special Control/Status Register
Index (In Decimal): 31
Size:
16 bits
BITS
DESCRIPTION
15:13
12
11:7
6
5
4:2
1:0
RESERVED
Autodone
Auto-negotiation done indication:
0 = Auto-negotiation is not done or disabled (or not active)
1 = Auto-negotiation is done
RESERVED
Enable 4B5B
0 = bypass encoder/decoder
1 = enable 4B5B encoding/decoding. MAC Interface must be configured in
MII mode.
RESERVED
Speed Indication
HCDSPEED value:
001 = 10BASE-T half-duplex
101 = 10BASE-T full-duplex
010 = 100BASE-TX half-duplex
110 = 100BASE-TX full-duplex
RESERVED
TYPE
RO
RO
R/W
R/W
RO
RO
RO
DEFAULT
-
0b
-
1b
-
XXX
-
SMSC LAN8710A/LAN8710Ai
65
DATASHEET
Revision 1.4 (08-23-12)