LAN91C100-FD SMSC [SMSC Corporation], LAN91C100-FD Datasheet - Page 47

• Manufacturer Part Number: LAN91C100-FD
• Description: FEAST FAST ETHERNET CONTROLLER WITH FULL DUPLEX CAPABILITY
• Manufacturer: SMSC [SMSC Corporation]

SMSC DS – LAN91C100FD Rev. D
FEAST Fast Ethernet Controller with Full Duplex Capability
No
Yes
Write Address Pointer Register
Read Status Word from RAM
Immediately Issue "Release"
Save Pkt Number Register
Read TXDONE Pkt # from
Write Into Packet Number
Restore Packet Number
PRELIMINARY
Acknowledge TXINTR
Read TX INT Again
Update Variables
FIFO Ports Reg.
Return to ISR
Figure 5.5 - TX INTR
Command
TX INT = 0?
TX INTR
Register
TX Status
OK?
Yes
Page 47
No
Re-Enable TXENA
Update Statistics
Rev. 10/14/2002