參數(shù)資料
型號(hào)： KSZ8873FLL
廠商： Micrel Inc
文件頁(yè)數(shù)： 46/115頁(yè)
文件大小： 0K
描述： IC ETHERNET SW 3PORT 64LQFP
產(chǎn)品培訓(xùn)模塊： KSZ8873 Ethernet Switches
特色產(chǎn)品： KSZ8873 Ethernet Switch Controller
標(biāo)準(zhǔn)包裝： 160
控制器類(lèi)型： 以太網(wǎng)開(kāi)關(guān)控制器
接口： MII
電源電壓： 1.8V，2.5V，3.3V
工作溫度： 0°C ~ 70°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 64-LQFP
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
包裝： 托盤(pán)
其它名稱： 576-3631
KSZ8873FLL-ND
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Micrel, Inc.
KSZ8873MLL/FLL/RLL
September 20, 2013
36
Revision 1.6
Advanced Switch Functions
Bypass Mode
The KSZ8873MLL/FLL/RLL also offer a by-pass mode which enables system-level power saving. When the CPU
(connected to Port 3) enters a power saving mode of power down or sleeping mode, the CPU can control the Pin 27
SMTXER3/MII_LINK_3 which can be tied high so that the KSZ8873MLL/FLL/RLL detect this change and automatically
switches to the by-pass mode in which the switch function between Port1 and Port2 is sustained. In the by-pass mode,
the packets with DA to port 3 will be dropped and by pass the internal buffer memory, make the buffer memory more
efficiency for the data transfer between port 1 and port 2. Specially, the power saving get more in energy detect mode with
the by-pass to be used.
IEEE 802.1Q VLAN Support
The KSZ8873MLL/FLL/RLL supports 16 active VLANs out of the 4096 possible VLANs specified in the IEEE 802.1Q
specification. KSZ8873MLL/FLL/RLL provides a 16-entries VLAN Table, which converts the 12-bits VLAN ID (VID) to the
4-bits Filter ID (FID) for address lookup. If a non-tagged or null-VID-tagged packet is received, the ingress port default VID
is used for lookup. In VLAN mode, the lookup process starts with VLAN Table lookup to determine whether the VID is
valid. If the VID is not valid, the packet is dropped and its address is not learned. If the VID is valid, the FID is retrieved for
further lookup. The FID + Destination Address (FID+DA) are used to determine the destination port. The FID + Source
Address (FID+SA) are used for address learning.
Table 10. FID + DA Lookup in VLAN Mode
DA found in Static
MAC Table?
Use FID flag?
FID match?
DA+FID found in
Dynamic MAC
Table?
Action
No
Don’t care
No
Broadcast to the membership ports defined
in the VLAN Table bits [18:16]
No
Don’t care
Yes
Send to the destination port defined in the
Dynamic MAC Address Table bits [53:52]
Yes
0
Don’t care
Send to the destination port(s) defined in the
Static MAC Address Table bits [50:48]
Yes
1
No
Broadcast to the membership ports defined
in the VLAN Table bits [18:16]
Yes
1
No
Yes
Send to the destination port defined in the
Dynamic MAC Address Table bits [53:52]
Yes
1
Yes
Don’t care
Send to the destination port(s) defined in the
Static MAC Address Table bits [50:48]
Table 11. FID + SA Lookup in VLAN Mode
FID+SA found in Dynamic MAC Table?
Action
No
Learn and add FID+SA to the Dynamic MAC Address Table
Yes
Update time stamp
Advanced VLAN features, such as “Ingress VLAN filtering” and “Discard Non PVID packets” are also supported by the
KSZ8873MLL/FLL/RLL. These features can be set on a per port basis, and are defined in register 18, 34 and 50 for ports
1, 2 and 3, respectively.
相關(guān)PDF資料
PDF描述
VI-B6J-IW-F1 CONVERTER MOD DC/DC 36V 100W
VI-B6H-IW-F2 CONVERTER MOD DC/DC 52V 100W
VI-B6F-IX-F4 CONVERTER MOD DC/DC 72V 75W
VI-B6F-IW-F2 CONVERTER MOD DC/DC 72V 100W
VI-B6D-IX-F1 CONVERTER MOD DC/DC 85V 75W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KSZ8873FLL-EVAL 功能描述:以太網(wǎng)開(kāi)發(fā)工具 3-Port Fast Ethernet Switch with 2x FX Ports - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類(lèi)型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類(lèi)型:RMII 工作電源電壓:
KSZ8873FLLI 功能描述:以太網(wǎng) IC 3-Port Fast Ethernet Switch with 2x FX Ports (Industrial Grade) 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
KSZ8873MLL 功能描述:以太網(wǎng) IC 3-Port Fast Ethernet Switch with 1x MII Interface - Lead Free 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
KSZ8873MLL AM 功能描述:以太網(wǎng) IC 3-Port 10/100 Ethernet Switch with 1x MII Interface (Automotive Grade, Lead Free) 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
KSZ8873MLL AM TR 功能描述:以太網(wǎng) IC 3-Port 10/100 Ethernet Switch with 1x MII Interface (Automotive Grade, Lead Free) 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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