參數(shù)資料
型號(hào)： DP83950AUP
英文描述： LAN Hub Controller
中文描述： 局域網(wǎng)集線器控制器
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 240K
代理商： DP83950AUP
TLF12437
DP83957
10
Mbs
Repeater
Information
Base
PRELIMINARY
June 1995
DP83957 10 Mbs Repeater Information Base
General Description
The DP83957 Repeater Information Base ‘‘RIB’’ allows ef-
fective implementation of managed multi-port 10 Mbs
ethernet repeater hubs The device supports all the neces-
sary Port Attributes for the IEEE 8023k standard (Layer
Management for 10 Mbs Baseband Repeaters) This de-
vice is designed to be interfaced with Repeater Interface
Controllers (DP839502) and gathers attributes on a per-
port per-packet basis
The DP83957 collects management attributes via the
DP839502 Management Bus and stores this information in
an external SRAM The DP83957 can be programmed to
collect information for up to two DP839502 on a shared
Management Bus It can also be used in a dedicated one
DP83957 per DP839502 architecture The attributes stored
in external SRAM can be easily accessed through the
DP83957 by an 8-bit multiplexed AddressData bus
Features
Y
Fully IEEE 8023K-July 1992 compatible
Y
Supports up to two DP839502
Y
Supports generic 1kx8or2kx8 SRAMs with variable
access times of up to 45 ns
Y
Guarantees at least one attribute access by the micro-
processor in the busiest network scenario
Y
Pipelined architecture for processing back to back
frames
Y
Supports maskable interrupts for status and error re-
porting on a shared interrupt pin
Y
Detection and notification of DP83950 Management
Bus errors
Y
Detection and notification of overflow of attribute coun-
ters
Y
80-pin PQFP package
10 System Diagram
TLF12437 – 1
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DP83950B 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:RIC⑩ Repeater Interface Controller
DP83950BNU 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:RIC⑩ Repeater Interface Controller
DP83950BVQB 功能描述:IC CTRLR RIC REPEATER 160-PQFP RoHS:否 類(lèi)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(lèi)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(lèi)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(chēng):Q6396337A
DP83950BVQB-MPC 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:REPEATER INTERFACE CONTROLLER
DP83952 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Repeater Interface Controller with Security Features (RIC II)
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