5 tx fifo information register (tx_fifo_inf), Tx fifo information register (tx_fifo_inf), Tx fifo information register – SMSC LAN9311i User Manual

Page 186: Tx_fifo_inf), Section 14.2.2.5, Datasheet

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

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.

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.

1200h

This manual is related to the following products:

LAN9311