LAN8710A Datasheet, PDF (52/82 Pages) SMSC Corporation – Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR Technology

Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR^® Technology
Datasheet
4.2.1 Basic Control Register
Index (In Decimal): 0
Size:
16 bits
BITS
DESCRIPTION
15 Soft Reset
1 = software reset. Bit is self-clearing. When setting this bit do not set other
bits in this register. The configuration (as described in Section 3.7.2,
"MODE[2:0]: Mode Configuration," on page 36) is set from the register bit
values, and not from the mode pins.
14 Loopback
0 = normal operation
1 = loopback mode
13 Speed Select
0 = 10Mbps
1 = 100Mbps
Note: Ignored if Auto-negotiation is enabled (0.12 = 1).
12 Auto-Negotiation Enable
0 = disable auto-negotiate process
1 = enable auto-negotiate process (overrides 0.13 and 0.8)
11 Power Down
0 = normal operation
1 = General power down mode
Note: The Auto-Negotiation Enable must be cleared before setting the
Power Down.
10 Isolate
0 = normal operation
1 = electrical isolation of PHY from the MII/RMII
9 Restart Auto-Negotiate
0 = normal operation
1 = restart auto-negotiate process
Note: Bit is self-clearing.
8 Duplex Mode
0 = half duplex
1 = full duplex
Note: Ignored if Auto-Negotiation is enabled (0.12 = 1).
7 Collision Test
0 = disable COL test
1 = enable COL test
6:0 RESERVED
TYPE
R/W
SC
R/W
R/W
R/W
R/W
R/W
R/W
SC
R/W
R/W
RO
DEFAULT
0b
0b
Note 4.1
Note 4.1
0b
0b
0b
Note 4.1
0b
-
Note 4.1 The default value of this bit is determined by the MODE[2:0] configuration straps. Refer to
Section 3.7.2, "MODE[2:0]: Mode Configuration," on page 36 for additional information.
Revision 1.4 (08-23-12)
52
DATASHEET
SMSC LAN8710A/LAN8710Ai