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LAN9312 Datasheet(PDF) 185 Page - SMSC Corporation

Part # LAN9312
Description  High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
PDF  458 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9312 Datasheet(HTML) 185 Page - SMSC Corporation

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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
185
Revision 1.2 (04-08-08)
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



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