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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08) 186 SMSC LAN9311/LAN9311i
DATASHEET
14.2.2.5 TX FIFO Information Register (TX_FIFO_INF)
This register contains the indication of free space in the TX Data FIFO and the used space in the TX
Status FIFO.
Offset: 080h Size: 32 bits
BITS DESCRIPTION TYPE DEFAULT
31:24 RESERVED RO -
23:16 TX Status FIFO Used Space (TXSUSED)
This field indicates the amount of space, in DWORD’s, currently used in the
TX Status FIFO.
RO 0b
15:0
TX Data FIFO Free Space (TXFREE)
This field indicates the amount of space, in bytes, available in the TX Data
FIFO. The application should never write more than is available, as indicated
by this value.
RO 1200h