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KSZ8851-16MLLJ_10 PDF预览

KSZ8851-16MLLJ_10

更新时间: 2024-11-14 07:17:07
品牌 Logo 应用领域
麦瑞 - MICREL 控制器PC以太网
页数 文件大小 规格书
90页 512K
描述
Single-Port Ethernet MAC Controller with 8-Bit or 16-Bit Non-PCI Interface

KSZ8851-16MLLJ_10 数据手册

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KSZ8851-16MLLJ  
Single-Port Ethernet MAC Controller  
with 8-Bit or 16-Bit Non-PCI Interface  
(Extended Temperature Support)  
General Description  
The KSZ8851-16MLLJ is a single-port controller chip with  
a non-PCI CPU interface and is available in 8-bit and 16-  
bit bus designs with extended temperature support (-40°C  
to +125°C). This datasheet describes the 48-pin LQFP  
KSZ8851-16MLLJ for applications requiring high-  
performance from single-port Ethernet Controller with 8-bit  
or 16-bit generic processor interface. The KSZ8851-  
16MLLJ offers the most cost-effective solution for adding  
high-throughput Ethernet connectivity to traditional  
embedded systems.  
LinkMD®  
Physical signal transmission and reception are enhanced  
through the use of analog circuitry, making the design  
more efficient and allowing for lower-power consumption.  
The KSZ8851-16MLLJ is designed using a low-power  
CMOS process that features a single 3.3V power supply  
with options for 1.8V, 2.5V or 3.3V VDD I/O. The device  
includes an extensive feature set that offers management  
information base (MIB) counters and CPU control/data  
interfaces with single shared data bus timing.  
The KSZ8851-16MLLJ is  
a
single-chip, mixed  
analog/digital device offering Wake-on-LAN technology for  
effectively addressing Fast Ethernet applications. It  
consists of a Fast Ethernet MAC controller, an 8-bit or 16-  
bit generic host processor interface and incorporates a  
unique dynamic memory pointer with 4-byte buffer  
boundary and a fully utilizable 18KB for both TX (allocated  
6KB) and RX (allocated 12KB) directions in host buffer  
interface.  
The KSZ8851-16MLLJ includes unique cable diagnostics  
feature called LinkMD®. This feature determines the length  
of the cabling plant and also ascertains if there is an open  
or short condition in the cable. Accompanying software  
enables the cable length and cable conditions to be  
conveniently displayed. In addition, the KSZ8851-16MLLJ  
supports Hewlett Packard (HP) Auto-MDIX thereby  
eliminating the need to differentiate between straight or  
crossover cables in applications.  
The KSZ8851-16MLLJ is designed to be fully compliant  
with the appropriate IEEE 802.3 standards. An extended  
temperature-grade version of the KSZ8851-16MLLJ is  
available (see “Ordering Information section).  
Functional Diagram  
Figure 1. KSZ8851-16MLLJ Functional Diagram  
LinkMD is a registered trademark of Micrel, Inc.  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-030210-1.0  
Month 2010  

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