LAN9117_08 Datasheet, PDF (69/136 Pages) SMSC Corporation – High Performance Single-Chip 10/100 Non-PCI Ethernet Controller

High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
MODE
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Manual
Auto-Negotiation
Auto-Negotiation
Auto-Negotiation
Auto-Negotiation
Auto-Negotiation
Auto-Negotiation
Auto-Negotiation
Auto-Negotiation
Table 4.2 CRS Behavior
SPEED
10 Mbps
10 Mbps
10 Mbps
10 Mbps
100 Mbps
100 Mbps
100 Mbps
100 Mbps
10 Mbps
10 Mbps
10 Mbps
10 Mbps
100 Mbps
100 Mbps
100 Mbps
100 Mbps
DUPLEX
Half-Duplex
Half-Duplex
Full-Duplex
Full-Duplex
Half-Duplex
Half-Duplex
Full-Duplex
Full-Duplex
Half-Duplex
Half-Duplex
Full-Duplex
Full-Duplex
Half-Duplex
Half-Duplex
Full-Duplex
Full-Duplex
ACTIVITY
Transmitting
Receiving
Transmitting
Receiving
Transmitting
Receiving
Transmitting
Receiving
Transmitting
Receiving
Transmitting
Receiving
Transmitting
Receiving
Transmitting
Receiving
CRS BEHAVIOR
(Note 4.1)
Active
Active
Low
Active
Active
Active
Low
Active
Active
Active
Low
Active
Active
Active
Low
Active
Note 4.1
The LAN9117 10/100 PHY CRS signal operates in two modes: Active and Low. When in
Active mode, CRS will transition high and low upon line activity, where a high value
indicates a carrier has been detected. In Low mode, CRS stays low and does not indicate
carrier detection. The CRS signal cannot be used as a verification method of transmitted
packets when transmitting in 10 or 100 Mbps in full-duplex mode.
SMSC LAN9117
69
DATASHEET
Revision 1.5 (07-11-08)