參數(shù)資料
型號(hào): ADM6995
廠商: Electronic Theatre Controls, Inc.
英文描述: 5 PORT 10/100 MB/S SINGLE CHIP ETHIERNET SWITCH CONTROLLER
中文描述: 5端口10/100 Mb / s的單芯片ETHIERNET開(kāi)關(guān)控制器
文件頁(yè)數(shù): 27/57頁(yè)
文件大?。?/td> 1815K
代理商: ADM6995
ADM6995L
Function Description
3.15.4
Back off Algorithm
The ADM6995L implements the truncated exponential back off algorithm compliant to
the 802.3 CSMA-CD standard. ADM6995L will restart the back off algorithm by
choosing 0-9 collision counts. The ADM6995L resets the collision counter after 16
consecutive retransmit trials.
3.15.5
Inter-Packet Gap (IPG)
IPG is the idle time between any two successive packets from the same port. The typical
number is 96 bits time. The value is 9.6us for 10Mbps ETHERNET, 960ns for 100Mbps
fast ETHERNET and 96ns for 1000M. ADM6995L provide option of 92 bit gap in
EEPROM to prevent packet lost when turn off Flow Control and clock P.P.M. value
difference.
3.15.6
Illegal Frames
The ADM6995L will discard all illegal frames such as runt packet (less than 64 bytes),
oversize packet (greater than 1518 or 1522 bytes) and bad CRC. Dribbling packing with
good CRC value will accept by ADM6995L. In case of bypass mode enabled,
ADM6995L will support tag and untagged packets with size up to 1522 bytes. In case of
non-bypass mode, ADM6995L will support tag packets up to 1526bytes, untagged
packets up to 1522bytes.
3.15.7
Half Duplex Flow Control
Back Pressure function is supported for half-duplex operation. When the ADM6995L
cannot allocate a receive buffer for an incoming packet (buffer full), the device will
transmit a jam pattern on the port, thus forcing a collision. Back Pressure is enabled by
the BPEN set during RESET asserting. An ADMtek proprietary algorithm is
implemented inside the ADM6995L to prevent back pressure function cause HUB
partitioned under heavy traffic environment and reduce the packet lost rate to increase the
whole system performance.
3.15.8
Full Duplex Flow Control
When full duplex port run out of its receive buffer, a PAUSE packet command will be
issued by ADM6995L to notice the packet sender to pause transmission. This frame
based flow control is totally compliant to IEEE 802.3x. ADM6995L can issue or receive
pause packet.
3.15.9
Broadcast Storm filter
If Broadcast Storming filter is enable, the broadcast packets over the rising threshold
ADMtek Inc.
3-11
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADM6995L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 PORT 10/100 MB/s SINGLE CHIP ETHERNET SWITCH CONTROLLER
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(biāo)準(zhǔn)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(pán) 供應(yīng)商設(shè)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