lan8187 Standard Microsystems Corp., lan8187 Datasheet - Page 54

• Manufacturer Part Number: lan8187
• Description: Lan8187/lan8187i ?15kv Esd Protected Mii/rmii 10/100 Ethernet Transceiver With Hp Auto-mdix & Flexpwr Technology
• Manufacturer: Standard Microsystems Corp.

Revision 1.5 (01-10-08)
MODE[2:0]
000
001
010
100
101
011
110
111
10Base-T Half Duplex. Auto-negotiation disabled.
10Base-T Full Duplex. Auto-negotiation disabled.
100Base-TX Half Duplex. Auto-negotiation
disabled.
CRS is active during Transmit & Receive.
100Base-TX Full Duplex. Auto-negotiation disabled.
CRS is active during Receive.
100Base-TX Half Duplex is advertised. Auto-
negotiation enabled.
CRS is active during Transmit & Receive.
Repeater mode. Auto-negotiation enabled.
100Base-TX Half Duplex is advertised.
CRS is active during Receive.
Power Down mode. In this mode the PHY wake-up
in Power-Down mode. The PHY cannot be used
when the MODE[2:0] bits are set to this mode. To
exit this mode, the MODE[2:0] bits must be
configured to some other value and a soft reset
must be issued.
All capable. Auto-negotiation enabled.
MODE DEFINITIONS
Table 5.48 MODE[2:0] Bus
±15kV ESD Protected MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX & flexPWR
DATASHEET
54
DEFAULT REGISTER BIT VALUES
REGISTER 0
[13,12,10,8]
X10X
0000
0001
1000
1001
1100
1100
N/A
SMSC LAN8187/LAN8187i
REGISTER 4
[8,7,6,5]
0100
0100
1111
N/A
N/A
N/A
N/A
N/A
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