Datasheet > 微控制器和处理器 > 其他 uPs/uCs/外围集成电路> MU9C8148-TCC

MU9C8148-TCC

更新时间： 2024-01-02 07:59:44

品牌	Logo	应用领域
MUSIC		微控制器和处理器外围集成电路 uCs集成电路 uPs集成电路
页数	文件大小	规格书
24页	107K
描述
SRT Interface

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技术参数
数据手册

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MU9C8148-TCC 技术参数

是否Rohs认证：	不符合	生命周期：	Contact Manufacturer
零件包装代码：	QFP	包装说明：	,
针数：	80	Reach Compliance Code：	unknown
HTS代码：	8542.31.00.01	风险等级：	5.68
JESD-30 代码：	S-PQFP-G80	湿度敏感等级：	3
端子数量：	80	最高工作温度：	70 °C
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装形状：	SQUARE	封装形式：	FLATPACK
认证状态：	Not Qualified	最大供电电压：	5.25 V
最小供电电压：	4.75 V	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子位置：	QUAD	uPs/uCs/外围集成电路类型：	MICROPROCESSOR CIRCUIT
Base Number Matches：	1

MU9C8148-TCC 数据手册

MU9C8148

SRT Interface

MUSICI

S E M I C O N D U C T O R S

DATA SHEET DRAFT

DISTINCTIVE CHARACTERISTICS

• Supports High-speed Source Routing or Source Routing • Automatically selects Source Routed or Transparent

Transparent Bridging for up to eight ports

filtering routines based on Transceiver output data, and

supplies the proper Match, Fail, or Flush signals to the

MAC chips

• Glue-free operation with the MUSIC MU9C1480 LANCAM

and Texas Instruments’ Token Ring chip set

• Built-in arbitration allows two MU9C8148s to share a

central LANCAM database

• Configurable for either Motorola or Intel processor

addressing modes

• Selectable filtering options for each frame type

• Complies with the IEEE standards for 4 and 16 Mb/s

Token Ring

• Frame validity is checked on all Routing Information

Fields

• Contains a 128-entry Instruction Buffer that holds up to

seven down-loadable filtering and purging routines,

which can be automatically or directly invoked

• Manufactured in CMOS technology

• Available in 68-pin PLCC package and 80-pin TQFP

package

GENERAL DESCRIPTION

The MU9C8148 is a Source Routing Transparent (SRT) Interface for The MU9C8148 can choose to copy or reject a frame depending on the

the MUSIC Semiconductors MU9C1480 LANCAM for use in Token frame type (MAC, LLC, or reserved), and can perform multiple validity

Ring LAN Bridges and Brouters. This interface operates in accordance checks on the Routing Information Field (RIF), including general checks

with IEEE standards while supporting address filtering rates up to on every Routing Control Field (RCF), as well as multiple frame related

150,000 frames/sec for minimum-length frames.

checks.

The MU9C8148 has four interfaces to provide glue-free address The Instruction Buffer can be loaded with up to 128 instructions at

filtering. The Transceiver interface monitors receive data from the initialization for the LANCAM routines such as matching, learning,

Transceiver to the MAC, and determines whether to filter according to aging, purging, and data buffering operations. Internal arbitration

Source Routing or Transparent Bridging standards. The MAC interface controls access to the LANCAM. Separate arbitration pins allow two

supplies Match, Fail, and Flush signals to instruct the Token Ring MU9C8148s to easily form a dual-port Bridge by sharing a central

controller to reject or copy a frame. The LANCAM interface controls the LANCAM-based station list.

companion LANCAM(s) for Transparent filtering. The Host Processor

interface allows for direct initialization of the MU9C8148, and With seven Ring-Bridge-Ring number combinations stored internally,

downloading of the filtering and purging routines, to offload the the MU9C8148 can also operate as a source routing accelerator in

communication processor.

multi-port Token Ring Bridge/Brouter environments.

BLOCK DIAGRAM

/RDY

RXD

RXC

XMATCH

XFAIL, /FLUSH

MAC

INTERFACE

TRANSCEIVER

INTERFACE

/INT

A4-A0

DQ15-DQ0

TRANSPARENT

BRIDGING BLOCK

D15-D0

ALE, SRNW

/CS

SOURCE ROUTING

BLOCK

/RS, /LDS

/WS, /UDS

/HBRDY

/HBEN

INSTRUCTION

BUFFER

/CM

/EC

/MI

/FI

/HBDIR

/RESET

ARBITER

/FULL, /EMPTY

/RQ

/RQI

/INTEL

LANCAM, the MUSIC logo, and the phrase “MUSIC Semiconductors” are registered trademarks of MUSIC Semiconductors. MUSIC is a trademark

of MUSIC Semiconductors. This device takes advantage of features in the LANCAM patented under U.S. Patent 5,383,146.

15 April 1997 Rev. 5.5 Draft Web

12 3 4 5 6 7...24

中文翻译

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与MU9C8148-TCC相关器件

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MU9C8328	MUSIC	获取价格	Ethernet Interface
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MU9C8328-RDC	MUSIC	获取价格	Ethernet Interface
MU9C8338	MUSIC	获取价格	10/ 100Mb Ethernet Filter Interface
MU9C8338A	MUSIC	获取价格	10/ 100Mb Ethernet Filter Interface
MU9C8338A-TFC	MUSIC	获取价格	10/ 100Mb Ethernet Filter Interface

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