Datasheet > 21154-AC

21154-AC

更新时间： 2024-02-15 06:41:12

品牌	Logo	应用领域
英特尔 - INTEL		PC 外围集成电路
页数	文件大小	规格书
3页	81K
描述
PCI BUS CONTROLLER, PBGA304, PBGA-304

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21154-AC 技术参数

生命周期：	Obsolete	零件包装代码：	BGA
包装说明：	BGA,	针数：	304
Reach Compliance Code：	unknown	风险等级：	5.81
总线兼容性：	PCI	JESD-30 代码：	X-PBGA-B304
端子数量：	304	封装主体材料：	PLASTIC/EPOXY
封装代码：	BGA	封装形状：	UNSPECIFIED
封装形式：	GRID ARRAY	认证状态：	Not Qualified
表面贴装：	YES	端子形式：	BALL
端子位置：	BOTTOM	uPs/uCs/外围集成电路类型：	BUS CONTROLLER, PCI
Base Number Matches：	1

21154-AC 数据手册

PCI Bridges - Products: 21154 Transparent PCI-to-PCI Bridge

21154 Transparent PCI-to-PCI Bridge

The 21154AC and 21154BC transparent PCI-to-PCI Bridges are Not Recommended for

new designs. For 33&nbspMHz applications use the FW21154AE. For 66&nbspMHz

applications use the FW21154BE.

The 21154 PCI-to-PCI bridge is designed for compliance with PCI Local Bus Specification,

Revision 2.2. The 21154 has a 64-bit primary bus interface and a 64-bit secondary interface.

Technical Quick List

Application Notes

Datasheets

Linecard

This chip, which is used on motherboards and add-in cards, allows a system designer to

increase data throughput in a variety of data intensive server, workstation and high-end PC

applications including networking and data storage. The 21154 is available in a 64-bit version

and is PCI Local Bus Specification, Revision 2.2 compliant.

Manuals

The 21154 provides full support for delayed transactions, which enables the buffering of

memory read, I/O, and configuration transactions. The 21154 has separate posted write, read

data, and delayed transaction queues with significant buffering capability. In addition, the

21154 supports buffering of simultaneous, multiple, posted write and delayed transactions in

both directions.

Guides

Software

IBIS

BSDL

Specification Updates

Schematics

Among the features of the 21154 are: a programmable 2-level secondary bus arbiter, an IEEE

standard 1149.1 JTAG interface, live insertion support, a 4-pin general-purpose I/O interface,

individual secondary clock disables, and enhanced address decoding. The 21154 has enough

clock and arbitration pins to support nine PCI bus master devices directly on its secondary

interface.

Frequently Asked

Questions

The 21154 allows the two PCI buses to operate concurrently. This means that a master and a

target on the same PCI bus can communicate while the other PCI bus is busy. This traffic

isolation may increase system performance in applications such as multimedia.

Where to Buy

Features

● Designed for compliance with PCI Local Bus Specification, Revision 2.2

● Supports 64-bit extension signals on the primary and secondary interfaces

● Implements delayed transactions for all PCI configuration, I/O, and memory read

commands – up to three transactions simultaneously in each direction

● Allows 152 bytes of buffering (data and address) for upstream posted memory write

commands and 88 bytes of buffering for downstream posted memory write commands

● Allows 152 bytes of read data buffering upstream and 72 bytes of read data buffering

downstream

● Provides concurrent primary and secondary bus operation to isolate traffic

● Provides ten secondary clock outputs:

❍ Low skew, permitting direct drive of option slots

❍ Individual clock disables, capable of automatic configuration during reset

● Provides arbitration support for nine secondary bus devices:

❍ A programmable 2-level arbiter

❍ Hardware disable control, permitting use of an external arbiter

● Provides a 4-pin general-purpose I/O interface, accessible through device-specific

configuration space

● Provides enhanced address decoding:

❍ A 32-bit I/O address range

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与21154-AC相关器件

型号	品牌	描述	获取价格	数据表
21154-AE	INTEL	PCI Bus Controller, CMOS, PBGA304, PLASTIC, BGA-304	获取价格
21154BC	INTEL	PCI Bus Controller, CMOS, PBGA304, PLASTIC, BGA-304	获取价格
21154-BE	INTEL	PCI Bus Controller, CMOS, PBGA304, PLASTIC, BGA-304	获取价格
2115A	BELDEN	Fieldbus, 20 Pr #16 Str TC, XLPO Ins, IS/OS, TPE Jkt, CMG	获取价格
2115A0031000	BELDEN	Fieldbus, 20 Pr #16 Str TC, XLPO Ins, IS/OS, TPE Jkt, CMG	获取价格
2115A0061000	BELDEN	Fieldbus, 20 Pr #16 Str TC, XLPO Ins, IS/OS, TPE Jkt, CMG	获取价格

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