lan91c100fd Standard Microsystems Corp., lan91c100fd Datasheet - Page 41

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lan91c100fd

Manufacturer Part Number
lan91c100fd
Description
Lan91c100fd Rev. B Feast Fast Ethernet Controller With Full Duplex Capability
Manufacturer
Standard Microsystems Corp.
Datasheet

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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. 03-28-07

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