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參數(shù)資料
| 型號(hào)： | LAN9116 |
| 廠商： | SMSC Corporation |
| 英文描述： | Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller |
| 中文描述： | 高效的單芯片10/100非PCI以太網(wǎng)控制器 |
| 文件頁數(shù)： | 78/126頁 |
| 文件大小： | 831K |
| 代理商： | LAN9116 |
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Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
Revision 1.1 (05-17-05)
78
SMSC LAN9116
DATASHEET
In addition to the host-accessible FIFOs, the MAC Interface Layer (MIL) contains an additional 2K
bytes of TX, and 128 bytes of RX FIFO buffering. These sizes are fixed, and cannot be adjusted by
the host.
As space in the TX MIL (Mac Interface Layer) FIFO frees, data is moved into it from the TX data FIFO.
Depending on the size of the frames to be transmitted, the MIL can hold up to two Ethernet frames.
This is in addition to any TX data that may be queued in the TX data FIFO.
Conversely, as data is received by the LAN9116, it is moved from the MAC to the RX MIL FIFO, and
then into the RX data FIFO. When the RX data FIFO fills up, data will continue to collect in the RX
MIL FIFO. If the RX MIL FIFO fills up and overruns, subsequent RX frames will be lost until room is
made in the RX data FIFO. For each frame of data that is lost, the RX Dropped Frames Counter
(RX_DROP) is incremented.
RX and TX MIL FIFO levels are not visible to the host processor. RX and TX MIL FIFOs operate
independent of the TX adatand RX data and status FIFOs. FIFO levels set for the RX and TX data
and Status FIFOs do not take into consideration the MIL FIFOs.
5.3.10
RX_DP_CTRL—Receive Datapath Control Register
This register is used to discard unwanted receive frames.
5.3.11
RX_FIFO_INF—Receive FIFO Information Register
This register contains the used space in the receive FIFOs of the LAN9116 Ethernet Controller.
Offset:
78h
Size:
32 bits
BITS
DESCRIPTION
TYPE
DEFAULT
31
RX Data FIFO Fast Forward (RX_FFWD):
Writing a ‘1’ to this bit causes
the RX data FIFO to fast-forward to the start of the next frame. This bit will
remain high until the RX data FIFO fast-forward operation has completed.
No reads should be issued to the RX data FIFO while this bit is high.
Note:
Please refer to section “Receive Data FIFO Fast Forward” on
page 53 for detailed information regarding the use of RX_FFWD.
R/W
0h
30-0
Reserved
RO
-
Offset:
7Ch
Size:
32 bits
BITS
DESCRIPTION
TYPE
DEFAULT
31-24
Reserved
RO
-
23-16
RX Status FIFO Used Space (RXSUSED).
Indicates the amount of space
in DWORDs, used in the RX Status FIFO.
RO
00h
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| LAN9116-MD | 功能描述:以太網(wǎng) IC Efficient Sngl Chip 10/100 Ethrnt RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| LAN9116-MT | 功能描述:以太網(wǎng) IC Ethernet IC 32bit Superior Perf RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| LAN9117 | 制造商:SMSC 制造商全稱:SMSC 功能描述:HIGH PERFORMANCE SINGLE-CHIP 10/100 NON-PCI ETHERNET CONTROLLER |
| LAN9117-MD | 功能描述:以太網(wǎng) IC HiPerfrm Sngl-Chip 10/100 Ethrnt RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| LAN9117-MT | 功能描述:以太網(wǎng) IC HiPerfrm Sngl-Chip 10/100 Ethrnt RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
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