LAN91C96I Datasheet, PDF (65/110 Pages) SMSC Corporation – NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER

Non-PCI Single-Chip Full Duplex Ethernet Controller
RX INTR
Write Ad. Ptr. Reg. & Read
Word 0 from RAM
Yes
Destination
No
Multicast?
Read Words 2, 3, 4 from RAM
for Address Filtering
No
Address Filtering ^Yes
Pass?
No
Status Word
Yes
OK?
Do Receive Lookahead
Get Copy Specs from Upper
Layer
No
Okay to
Yes
Copy?
Copy Data Per Upper Layer
Specs
Issue "Remove and Release"
Command
Return to ISR
Figure 8.2 – RX INTR
SMSC DS – LAN91C96I
Page 65
DATASHEET
Rev. 11/18/2004