LAN9118_05 SMSC [SMSC Corporation], LAN9118_05 Datasheet - Page 79

• Manufacturer Part Number: LAN9118_05
• Description: High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
• Manufacturer: SMSC [SMSC Corporation]

High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
SMSC LAN9118
5.3.12
5.3.13
31-24
23-16
BITS
BITS
15-0
15-0
DESCRIPTION
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).
DESCRIPTION
Reserved
TX Status FIFO Used Space (TXSUSED). Indicates the amount of space
in DWORDS used in the TX Status FIFO.
TX Data FIFO Free Space (TDFREE). Reads the amount of space in bytes,
available in the TX data FIFO. The application should never write more data
than is available, as indicated by this value.
TX_FIFO_INF—Transmit FIFO Information Register
This register contains the free space in the transmit data FIFO and the used space in the transmit
status FIFO in the LAN9118.
PMT_CTRL— Power Management Control Register
This register controls the Power Management features. This register can be read while the
LAN9118
Note: The LAN9118 must always be read at least once after power-up, reset, or upon return from a
Offset:
Offset:
power-saving state or write operations will not function.
is in a power saving mode.
80h
84h
DATASHEET
79
Size:
Size:
32 bits
32 bits
TYPE
TYPE
RO
RO
RO
RO
Revision 1.1 (05-17-05)
DEFAULT
DEFAULT
0000h
1200h
00h
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