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参数资料
型号： KS8993M
厂商： Micrel Inc
文件页数： 65/85页
文件大小： 0K
描述： IC SWITCH 10/100 3PORT 128PQFP
标准包装： 66
系列： *
类型： *
应用： *
安装类型： 表面贴装
封装/外壳： 128-BFQFP
供应商设备封装： 128-PQFP（14x20）
包装： 管件
配用： 576-1013-ND - BOARD EVAL EXPERIMENT KS8993M
Micrel, Inc.
KS8993M/ML/MI
April 2005
68
M9999-041205
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 lookup fails (no match in both static and
dynamic tables), then 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. KS8993M supports 16 active VLANs
represented by these four bit fields. FID is the
mapped ID. If 802.1Q VLAN is enabled, the
lookup will be based on FID+DA and FID+SA.
0x0
11-0
VID
R/W
IEEE 802.1Q 12 bits VLAN ID
0x001
Table 13. Format of Static VLAN Table (16 Entries)
If 802.1Q VLAN mode is enabled, KS8993M 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 lookup process will start from the VLAN table lookup. 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 lookup 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)
Dynamic MAC Address Table
This table is read only. The table contents are maintained by KS8993M only.
Bit
Name
R/W
Description
Default
71
Data not ready
RO
= 1, entry is not ready, retry until this bit is set to
0
= 0, entry is ready
70-67
Reserved
RO
Reserved
Table 14. Format of Dynamic MAC Address Table (1K Entries)
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相关代理商/技术参数
参数描述
KS8993M_11 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Integrated 3-Port 10/100 Managed Switch with PHYs
KS8993MA5 功能描述:IC SWITCH 3-PORT 10/100 128-PQFP RoHS:否 类别:集成电路 (IC) >> 专用 IC 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装
KS8993M-EVAL 功能描述:BOARD EVAL EXPERIMENT KS8993M RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板
KS8993MI 功能描述:IC SWITCH 10/100 3PORT 128PQFP RoHS:否 类别:集成电路 (IC) >> 专用 IC 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装
KS8993ML 功能描述:IC SWITCH 10/100 3PORT 128PQFP RoHS:否 类别:集成电路 (IC) >> 专用 IC 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装
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