LAN9311 Datasheet, PDF (185/461 Pages) SMSC Corporation – Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

14.2.2.4
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
RX FIFO Information Register (RX_FIFO_INF)
Offset:
07Ch
Size:
32 bits
This register contains the indication of used space in the RX FIFO’s.
BITS
DESCRIPTION
31:24 RESERVED
23:16
15:0
RX Status FIFO Used Space (RXSUSED)
This field indicates the amount of space, in DWORD’s, currently used in the
RX Status FIFO.
RX Data FIFO Used Space (RXDUSED)
This field indicates the amount of space, in bytes, used in the RX Data FIFO.
For each receive frame, the field is incremented by the length of the receive
data. In cases where the payload does not end on a DWORD boundary, the
total will be rounded up to the nearest DWORD.
TYPE
RO
RO
RO
DEFAULT
-
0b
0b
SMSC LAN9311/LAN9311i
185
DATASHEET
Revision 2.0 (02-14-13)