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KSZ8842-PMQLTR

更新时间： 2024-11-14 13:09:11

品牌	Logo	应用领域
麦瑞 - MICREL		PC 以太网
页数	文件大小	规格书
2页	172K
描述
KSZ8842-PMQLTR

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中文翻译

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技术参数
数据手册

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KSZ8842-PMQLTR 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	5.65
Base Number Matches：	1

KSZ8842-PMQLTR 数据手册

KSZ8842

PMQL/PMQLI

www.micrel.com

Product Brief

2-Port Ethernet Switch with

PCI Interface

Description

Beneﬁts

The KSZ8842-PMQL is the industry’s ﬁrst 2-port switch

with a PCI CPU interface. An Industrial Temperature

grade part, the KSZ8842-PMQLI will also available from

Q1, 2006. The KSZ8842P is a proven, 4th generation,

integrated, fully managed Layer 2 switch that is entirely

compliant to IEEE802.3u standards.

In addition to offering all of the features of an integrat-

ed Layer 2 managed switch:

• 2-port switch with 32 bit/33MHz PCI bus for differ-

ent host processor interfaces

• Fully compliant to the IEEE802.3u standard

• Repeater mode capabilities to allow for ‘cut-thru’

in latency critical Industrial Ethernet or Embedded

Ethernet applications

The KSZ8842P can be conﬁgured as a low-latency re-

peatertoallowfor‘cutthru’inlatencycriticalEmbeddedor

IndustrialEthernetapplications. Forindustrialautomation

applications, it runs in half-duplex mode.

• Dynamic buffer memory scheme

– Essential for applications such as Video over IP

where image jitter is unacceptable

• Micrel LinkMD^TMcable diagnostic capabilities to

determine cable length, determine distance to fault,

and to diagnose faulty cables

TheKSZ8842Poffersanextensivefeaturesetthatincludes

tag/port-based VLAN, QoS priority management, MAC

ﬁltering function, MIB counters, and CPU control/data

interfaces to effectively address both current and emerg-

ing Fast Ethernet applications.

• HP Auto MDIX crossover with disable and enable

option

• Industrial temperature support: –40^oC to +85^oC

• Four priority queues to handle voice, video, data,

and control packets

The KSZ8842P contains two 10/100 transceivers with

patented mixed-signal low-power technology, two 1K

entry media access control (MAC) units, a separate

DMA channel, a high-speed non-blocking switch fabric,

a dedicated 1K entry forwarding table, and an on-chip

frame buffer memory.

Block Diagram

1K Look-up

Engine

HP Auto

MDI/MDI-X

10/100

T/TX

PHY 1

10/100

MAC 1

Queue

Management

HP Auto

MDI/MDI-X

10/100

T/TX

PHY 2

10/100

MAC 2

Buffer

Management

DMA

Channel

32 Bit/33MHz

PCI

Interface Unit

PCI Bus

Interface

Frame

Buffers

MIB

Counters

Control

Registers

EEPROM

Interface

EEPROM I/F

P1 LED[3:0]

P2 LED[3:0]

LED

Drivers

Note: For an MII/RMII, I²C or SPI interface, use the KSZ8893ML.

LinkMD is a trademark of Micrel, Inc.

Micrel Semiconductor TEL: 1.408.944.0800 FAX: 1.408.474.1000 HTTP:// www.micrel.com

中文翻译

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与KSZ8842-PMQLTR相关器件

型号	品牌	获取价格	描述	数据表
KSZ8842-PMQL-TR	MICROCHIP	获取价格	DATACOM, LAN SWITCHING CIRCUIT
KSZ8851	MICROCHIP	获取价格	The KSZ8851 is a single-port controller chip with a SPI or 8-/16-/32-bit non-PCI CPU inter
KSZ8851-16	MICROCHIP	获取价格	Single-Port Ethernet MAC Controller with 8/16-Bit or 32-Bit Non-PCI Interface
KSZ8851-16MLL	MICROCHIP	获取价格	DATACOM, ETHERNET TRANSCEIVER, PQFP48
KSZ8851-16MLL_15	MICREL	获取价格	Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface
KSZ8851-16MLL-Eval	MICREL	获取价格	Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface
KSZ8851-16MLLI	MICROCHIP	获取价格	DATACOM, ETHERNET TRANSCEIVER, PQFP48
KSZ8851-16MLLI-TR	MICROCHIP	获取价格	IC MAC CTLR 1PORT W/BUS 48LQFP
KSZ8851-16MLLJ	MICREL	获取价格	Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface
KSZ8851-16MLLJ_10	MICREL	获取价格	Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface

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