LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Table 53. Status Register #2 (Address 17)
Bit
Name
Reserved
Description
Type 1
Default
17.15
Always 0.
RO
0
1 = LXT971A is operating in 100BASE-TX mode.
0 = LXT971A is not operating 100BASE-TX mode.
17.14
17.13
17.12
17.11
17.10
17.9
10/100 Mode
Transmit Status
Receive Status
Collision Status
Link
RO
RO
RO
RO
RO
RO
RO
0
0
0
0
0
0
0
1 = LXT971A is transmitting a packet.
0 = LXT971A is not transmitting a packet.
1 = LXT971A is receiving a packet.
0 = LXT971A is not receiving a packet.
1 = Collision is occurring.
0 = No collision.
1 = Link is up.
0 = Link is down.
1 = Full-duplex.
0 = Half-duplex.
Duplex Mode
Auto-Negotiation
1 = LXT971A is in auto-negotiation mode.
0 = LXT971A is in manual mode.
17.8
1 = Auto-negotiation process completed.
0 = Auto-negotiation process not completed.
Auto-Negotiation
Complete
17.7
RO
0
This bit is only valid when auto negotiate is
enabled, and is equivalent to Register bit 1.5.
17.6
17.5
Reserved
Polarity
Always 0.
RO
RO
0
0
1 = Polarity is reversed.
0 = Polarity is not reversed.
1 = Device Pause capable.
17.4
17:3
Pause
Error
RO
RO
0
0
0 = Device Not Pause capable.
1 = Error Occurred (Remote Fault, X,Y, Z).
0 = No error occurred.
17:2
17:1
17.0
Reserved
Reserved
Reserved
Always 0.
Always 0.
Always 0.
RO
RO
RO
0
0
0
1. RO = Read Only. R/W = Read/Write
82
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002