LAN91C110_08 datasheet(43/56 Pages) SMSC

Part #	LAN91C110

Description	FEAST Fast Ethernet Controller for PCMCIA and Generic 16-Bit Applications

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Manufacturer	SMSC [SMSC Corporation]

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FEAST Fast Ethernet Controller for PCMCIA and Generic 16-Bit Applications

Datasheet

SMSC LAN91C110 Rev. B

Page 43

Revision 1.0 (11-04-08)

DATASHEET

Write Into Packet Number

Register

TX Status

OK?

TX INTR

Save Pkt Number Register

Read TXDONE Pkt # from

FIFO Ports Reg.

Immediately Issue "Release"

Command

Acknowledge TXINTR

Read TX INT Again

Return to ISR

No

Yes

Read Status Word from RAM

Update Statistics

Re-Enable TXENA

Update Variables

TX INT = 0?

Restore Packet Number

Yes

No

Write Address Pointer Register

Figure 5.5 - TX INTR

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