參數(shù)資料
型號： KS8993F
廠商： Micrel Inc
文件頁數(shù)： 79/99頁
文件大?。?/td> 0K
描述： IC CONV MED 10/100 3PORT 128PQFP
標準包裝： 66
系列： *
類型： *
應用： *
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應商設備封裝： 128-PQFP（14x20）
配用： KS8993F-EVAL-ND - EVAL KIT EXPERIMENTAL KS8993F
KS8993F
Micrel
August 26, 2004
Revision 1.0
- 80 -
4.6
VLAN Table
VLAN table is used to do VLAN table look up. 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 below:
Table 11: Format of Static VLAN Table (16 entries)
Bit
Name
R/W
Description
Default
19
Valid
R/W
= 1, the entry is valid
= 0, entry is invalid
1
18-16
Membership
R/W
Specify which ports are members of the
VLAN. If a DA look up fails (no match in
both static and dynamic tables), the packet
associated with this VLAN will be forwarded
to ports specified in this field. E.g. 101
means port 3 and 1 are in this VLAN.
111
15-12
FID
R/W
Filter ID. KS8993F 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, KS8993F 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. 110 with 0x14 (read VLAN table selected)
Write to reg. 111 with 0x02 (trigger the read operation)
Then
Read reg. 118 (VLAN table bits 19-16)
Read reg. 119 (VLAN table bits 15-8)
Read reg. 120 (VLAN table bits 7-0)
2) VLAN Table Write (write the 7
th entry)
Write to reg. 118 (VLAN table bits 19-16)
Write to reg. 119 (VLAN table bits 15-8)
Write to reg. 120 (VLAN table bits 7-0)
Write to reg. 110 with 0x04 (write VLAN table selected)
Write to reg. 111 with 0x06 (trigger the write operation)
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KS8993F-A1 功能描述:IC CONV MED 10/100 3PORT 128PQFP RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調(diào)幀器 應用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA（27x27） 包裝:散裝
KS8993FA5 功能描述:IC SWITCH 3-PORT 10/100 128-PQFP RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調(diào)幀器 應用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA（27x27） 包裝:散裝
KS8993F-EVAL 功能描述:EVAL KIT EXPERIMENTAL KS8993F RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
KS8993FL 功能描述:IC CONV MED 10/100 SGL 128PQFP RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調(diào)幀器 應用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA（27x27） 包裝:散裝
KS8993FL-EVAL 功能描述:BOARD EVAL EXPERIMENT KS8993F RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
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