LAN9500 Datasheet, PDF (125/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

LAN950x
7.3.6 RECEIVE FIFO INFORMATION REGISTER (RX_FIFO_INF)
Address:
018h
Size:
32 bits
Bits
31:16
15:0
Description
RESERVED
RX Data FIFO Used Space (RXDUSED)
Reads the amount of space in bytes used in the RX Data FIFO. For each
receive frame, this field is incremented by the length of the receive data
rounded up to the nearest DWORD (if the payload does not end on a
DWORD boundary).
Type
RO
RO
Default
-
0000h
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DS00001875A-page 125