LAN91C100-FD-SS SMSC [SMSC Corporation], LAN91C100-FD-SS Datasheet - Page 41

• Manufacturer Part Number: LAN91C100-FD-SS
• Description: FEAST Fast Ethernet Controller with Full Duplex Capability
• Manufacturer: SMSC [SMSC Corporation]

SMSC DS – LAN91C100FD REV. B
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
Acknowledge TXINTR
Read TX INT Again
Update Variables
FIFO Ports Reg.
Return to ISR
TX INT = 0?
FIGURE 8 - TX INTR
Command
TX INTR
TX Status
Register
OK?
Page 41
Yes
No
Re-Enable TXENA
Update Statistics
Rev. 01-20-06