LAN91C96-MS Standard Microsystems (SMSC), LAN91C96-MS Datasheet - Page 84

• Manufacturer Part Number: LAN91C96-MS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LAN91C96-MS

• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 100
• Lead Free Status / RoHS Status: Compliant

9.8
Revision 1.0 (10-24-08)
CSMA Block
The CSMA/CD block is first interfaced via its control registers in order to define its operational
configuration. From then on, the DMA interface between the CSMA/CD block and memory is used to
transfer data to and from its data path interface.
For transmit, the CSMA/CD block will be asked to transmit frames as soon as they are ready in memory. It
will continue transmissions until any of the following transmit error occurs:
1.
2.
3.
4.
In that case TXENA will be cleared and the CPU should restart the transmission by setting it again. If a
transmission is successful, TXENA stays set and the CSMA/CD is provided by the DMA block with the
next packet to be transmitted.
Collisions on same frame
Late collision
Lost Carrier sense and MON_CSN set
SQET error and STP_SQET set
FIGURE 9.1 - MMU PACKET NUMBER FLOW AND RELEVANT REGISTERS
DATASHEET
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Non-PCI Single-Chip Full Duplex Ethernet Controller with Magic Packet
SMSC LAN91C96 5v&3v
Datasheet