參數(shù)資料
型號： ADM6995L
廠商： Electronic Theatre Controls, Inc.
英文描述： 5 PORT 10/100 MB/s SINGLE CHIP ETHERNET SWITCH CONTROLLER
中文描述： 5端口10/100 MB / s的單芯片以太網交換控制器
文件頁數(shù)： 29/57頁
文件大小： 1815K
代理商： ADM6995L
ADM6995L
Function Description
function, two EEPROM registers are needed to be programmed first :
* Port VID number at EEPROM register 0x01h~0x09h bit 13~10, register 0x28h~0x2bh
and register 0x2ch bit 7~0: ADM6995L will check coming packet. If coming packet is
non VLAN packet then ADM6995L will use PVID as VLAN group reference.
ADM6995L will use packet’s VLAN value when receive tagged packet.
* VLAN Group Mapping Register. EEPROM register 013h~022h define VLAN grouping
value. User use these register to define VLAN group.
User can define each port as Tag port or Untag port by Configuration register Bit 4. The
operation of packet between Tag port and Untag port can explain by follow example:
Example1: Port receives Untag packet and send to Untag port.
ADM6995L will check the port user define four bits of VLAN ID first then check
VLAN group resister. If destination port same VLAN as receiving port then this packet
will forward to destination port without any change. If destination port not same VLAN
as receiving port then this packet will be dropped.
Example2: Port receives Untag packet and send to Tag port.
ADM6995L will check the port user define fours bits of VLAN ID first then check
VLAN group resister. If destination port same VLAN as receiving port than this packet
will forward to destination port with four byte VLAN Tag and new CRC. If destination
port not same VLAN as receiving port then this packet will be dropped.
Example3: Port receives Tag packet and send to Untag port.
ADM6995L will check the packet VLAN ID first then check VLAN group resister.
If destination port same VLAN as receiving port than this packet will forward to
destination port after remove four bytes with new CRC error. If destination port not same
VLAN as receiving port then this packet will be dropped.
Example4: Port receives Tag packet and send to Tag port.
ADM6995L will check the user define packet VLAN ID first then check VLAN
group resister. If destination port same VLAN as receiving port than this packet will
forward to destination port without any change. If destination port not same VLAN as
receiving port then this packet will be dropped.
3.19 Priority Setting
It is a trend that data, voice and video will be put on networking, Switch not only deal
data packet but also provide service of multimedia data. ADM6995L provides two
priority queues on each port with N:1 rate. See EEPROM Reg.0x10h.
This priority function can set three ways as below:
* By Port Base: Set specific port at specific queue. ADM6995L only check the port
priority and not check packet’s content VLAN and TOS.
ADMtek Inc.
3-13
相關PDF資料
PDF描述
ADM6995 5 PORT 10/100 MB/S SINGLE CHIP ETHIERNET SWITCH CONTROLLER
ADS-930 16-Bit, 500kHz Sampling A/D Converters
ADS-930MC 16-Bit, 500kHz Sampling A/D Converters
ADS-930MM 16-Bit, 500kHz Sampling A/D Converters
ADS-EVAL3 16-Bit, 500kHz Sampling A/D Converters
相關代理商/技術參數(shù)
參數(shù)描述
ADM6995LAAT1 功能描述:IC SWITCH CNTRLR 10/100 128QFP RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應商設備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
ADM6995LAAT1NP 制造商:Infineon Technologies AG 功能描述:SWITCH / PHY
ADM6995LCACT1 制造商:Infineon Technologies AG 功能描述:
ADM6995LCACT1NP 制造商:Infineon Technologies AG 功能描述:SWITCH / PHY
ADM6995LCADT1NP 制造商:Infineon Technologies AG 功能描述:SWITCH / PHY
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