參數(shù)資料
型號(hào)： KSZ8873MLL AM
廠(chǎng)商： Micrel Inc
文件頁(yè)數(shù)： 109/115頁(yè)
文件大?。?/td> 0K
描述： IC ETHERNET SWITCH 3PORT 64-LQFP
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： -40°C ~ 85°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-PQFP（10x10）
包裝： 托盤(pán)
其它名稱(chēng)： 576-3633
KSZ8873MLL AM-ND
KSZ8873MLLAM
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Micrel, Inc.
KSZ8873MLL/FLL/RLL
September 20, 2013
93
Revision 1.6
VLAN Table
The KSZ8873 uses the VLAN table to perform look ups. If 802.1Q VLAN mode is enabled (register 5, bit 7 = 1), this table
will be used to retrieve the VLAN information that is associated with the ingress packet. This information includes FID
(filter ID), VID (VLAN ID), and VLAN membership as described in Table 17.
Table 17. Format of Static VLAN Table (16 Entries)
Bit
Name
R/W
Description
Default
19
Valid
R/W
= 1, entry is valid
= 0, entry is invalid
1
18-16
Membership
R/W
Specify which ports are members of the VLAN. If
a DA lookup fails (no match in both static and
dynamic tables), the packet associated with this
VLAN will be forwarded to ports specified in this
field. For example, 101 means port 3 and 1 are in
this VLAN.
111
15-12
FID
R/W
Filter ID. KSZ8873 supports 16 active VLANs
represented by these four bit fields. FID is the
mapped ID. If 802.1Q VLAN is enabled, the look
up will be based on FID+DA and FID+SA.
0x0
11-0
VID
R/W
IEEE 802.1Q 12 bits VLAN ID
0x001
If 802.1Q VLAN mode is enabled, KSZ8873 will assign a VID to every ingress packet. If the packet is untagged or tagged
with a null VID, the packet is assigned with the default port VID of the ingress port. If the packet is tagged with non-null
VID, the VID in the tag will be used. The look up process will start from the VLAN table look up. If the VID is not valid, the
packet will be dropped and no address learning will take place. If the VID is valid, the FID is retrieved. The FID+DA and
FID+SA lookups are performed. The FID+DA look up determines the forwarding ports. If FID+DA fails, the packet will be
broadcast to all the members (excluding the ingress port) of the VLAN. If FID+SA fails, the FID+SA will be learned.
Examples:
1.
VLAN Table Read (Read the 3
rd Entry)
Write to reg. 121 (0x79) with 0x14
// Read VLAN table selected
Write to reg. 122 (0x7A) with 0x02
// Trigger the read operation
Then,
Read reg. 129 (0x81), VLAN table bits [19:16]
Read reg. 130 (0x82), VLAN table bits [15:8]
Read reg. 131 (0x83), VLAN table bits [7:0]
2.
VLAN Table Write (Write the 7
th Entry)
Write to reg. 129 (0x81), VLAN table bits [19:16]
Write to reg. 130 (0x82), VLAN table bits [15:8]
Write to reg. 131 (0x83), VLAN table bits [7:0]
Write to reg. 121 (0x79) with 0x04
// Write VLAN table selected
Write to reg. 122 (0x7A) with 0x06
// Trigger the write operation
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KSZ8873MLL-EVAL 功能描述:以太網(wǎng)開(kāi)發(fā)工具 3-Port Fast Ethernet Switch with 1x MII Interface - 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:
KSZ8873MLLI 功能描述:以太網(wǎng) IC 3-Port Fast Ethernet Switch with 1x RMII Interface (Industrial 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
KSZ8873MLLJ 功能描述:以太網(wǎng) IC 3-Port Fast Ethernet Switch with 1x RMII Interface (Extended Temp) 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
KSZ8873MML 功能描述:以太網(wǎng) IC 3-Port Fast Ethernet Switch with 2x 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
KSZ8873MML-EVAL 功能描述:以太網(wǎng)開(kāi)發(fā)工具 3-Port Fast Ethernet Switch with 2x MII Interface - 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:
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