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This title in other editionsAgp System Architectureby Dave Dzatko
Synopses & ReviewsPublisher Comments: The Accelerated Graphics Port (AGP) interface is a platform bus specification that enables high-performance graphics capabilities, 3-D, and video--over networks as well as on individual PCs. Platform-independent, AGP is supported by numerous hardware and software vendors, and is now a standard on Intel-based platforms. Software and hardware engineers working with graphics must have a good understanding of this important technology. AGP System Architecture, Second Edition includes all the essentials from the first edition, but has been expanded and reorganized for even better coverage. This comprehensive and concise book provides an overview of the technology, a detailed description of the specification, a discussion of AGP Pro, and a practical tutorial for mastering AGP. In particular, it focuses on 3-D graphics and video-related applications most served by AGP. It also provides a primer for the PCI bus protocol as background for a discussion on AGP and analyzes the advantages of AGP over PCI for 3-D graphics. You will find coverage of the following essential topics:
This indispensable resource will enable you to understand AGP tools, design a high-quality AGP device, and support AGP in software applications. The PC System Architecture Series is a crisply written and comprehensive set of guides to the most important PC hardware standards. Each title is designed to illustrate the relationship between the software and hardware, and thoroughly explains the architecture, features, and operation of systems built using the targeted technology. 0201700697B04062001 Book News Annotation:Focuses on 3-D graphics and video-related issues—the applications
most served by the accelerated graphics port (AGP) interface.
Coverage includes AGP signaling requirements, signals for AGP-
compliant masters and targets, and transaction requests and ordering
rules. For hardware and software engineers working with graphics.
Annotation c. by Book News, Inc., Portland, OR (booknews@booknews.com) Synopsis:The Accelerated Graphics Port (AGP) interface is a new platform bus specification that enables high performance graphics capabilities-especially 3-D and video-over networks and on individual PCs. Platform independent, AGP is supported by numerous hardware and software vendors, and is now standard on Pentium II computers. Software and hardware engineers working with graphics must have a good understanding of this important technology.
AGP System Architecture provides an overview of the technology, a detailed description of the specification, and a practical tutorial for mastering AGP. Comprehensive and concise, it presents all the information you need to understand and utilize this proliferating technology. In particular, this book focuses on 3-D graphics and video-related issues-the applications most served by AGP.
You will find coverage of the following essential topics.
AGP advantages over PCI graphics for rendering 3-D images
AGP signaling requirements, including electrical AC and DC specifications and AGP driver and receiver characteristics
Signals for AGP-compliant masters and targets
AGP arbitration, with a look at optimization of grant pipelining
AGP transaction requests and ordering rules
AGP and Fast Write transactions in the 1X, 2X, and 4X data transfer modes
AGP hardware environment, including add-in cards, connectors, and the motherboard
AGP-specific configuration registers
This indispensable resource will enable you to utilize AGP tools, design a high quality AGP device and support AGP in software applications.
The PC System Architecture Series is a crisply written and comprehensive set of guides to the most important PC hardware standards. Each title is designed to illustrate the relationship between the software and hardware, and thoroughly explains the architecture, features, and operation of systems built using one particular type of chip or hardware specification. About the AuthorMindShare, Inc. is one of the leading technical training companies in the hardware industry, providing innovative courses for dozens of companies, including Intel, IBM, and Compaq. David Dzatko has over ten years of experience designing and testing computer systems. He is currently an instructor with MindShare, Inc., teaching computer architecture to leading companies in the computer industry. Tom Shanley, president of MindShare, Inc., is one of the world's foremost authorities on computer system architecture. In the course of his career, he has trained thousands of engineers in hardware and software design. 0201700697AB07142003 Table of ContentsAbout This Book.
The MindShare Architecture Series.
Cautionary Note.
Organization of This Book.
Who This Book Is For.
Prerequisite Knowledge.
Documentation Conventions.
Visit Our Web Site.
We Want Your Feedback.
1. The 3D Graphics Challenge.
3D Graphics Compute- and Memory-Intensive.
2. PCI/AGP Adapter Overview.
System Overview.
Local Versus Main Memory.
PCI Graphics Adapter.
Intro To AGP Graphics Adapter.
3. AGP Enumeration and Configuration.
Example Enumeration/Configuration of AGP.
Host/PCI Bridge PCI Bus 0, Device 0, Function 0.
AGP Enable/Disable Bit.
Discovering Host/PCI Bridge's AGP Register Set.
NB Connects To AGP Bus via PCI-to-PCI Bridge.
PCI-to-PCI Bridge's Configuration Registers.
Assigning AGP Bus Number.
Device At Other End of Bus Needn't Be a Graphics Adapter.
Discovering AGP Graphics Adapter.
Discovering Adapter's AGP Capability Register Set.
Setting Up Adapter's BAR Registers.
4. AGP Memory Allocation and Usage.
Introduction To Dynamic Memory Allocation.
AGP Aperture Implementation.
5. Windows Use of AGP.
Intro to Windows Software Environment.
BIOS Initialization Requirements.
Operating System Initialization Requirements.
6. PCI Protocol Review.
Some Basic Rules For Both Reads and Writes.
Example Single Data Phase Read.
Example Burst Read.
Treatment of Byte Enables During Read or Write.
Performance During Read Transactions.
Example Single Data Phase Write Transaction.
Example Burst Write Transaction.
Performance During Write Transactions.
PCI Is Not An Efficient Bus.
7. Intro to AGP Concepts and Terminology.
Decoupling Address and Data Phases Optimizes Bus Usage.
Bus Arbitration.
Issuing Transaction Requests.
PCI Bus Master Can Write to AGP Adapter's Local Memory.
GART Support for PCI Masters Is Optional.
Monochrome Device Adapter (MDA) Support.
Some Terminology.
8. The Signal Groups.
Required Versus Optional Features.
PCI Target Latency Rules Don't Apply to North Bridge.
AGP Graphics Adapter Cannot Use Subtractive Decode.
North Bridge/AGP Adapter Interconnect Examples.
Introduction To Signal Description.
AGP Clock Signal.
Reset (RST#).
The Signaling Environment (I/O Voltage).
Where Is the AGP Bus Arbiter Located?
Signal Usage In AGP Transactions.
Signal Usage In PCI Transactions.
Signal Usage in Fast Write Transactions.
Special Overflow Prevention Signals.
Unimplemented PCI Signals.
Interrupt Generation.
Error Reporting.
USB-Related Signals.
Power Management.
Signal Types.
Pull-Up and Pull-Down Resistor Values.
9. The Signaling Environment.
Point-to-Point Topology.
Number of Devices.
Signal Routing and Layout.
Trace Impedance and Line Termination.
Add-in Card Clock Skew Specifications.
AGP Voltage Characteristics.
Vref Generation.
Component Pinout Recommendations.
Motherboard/Add-in Card Interoperability.
Pull-up/Pull-down Resistors.
Maximum AC Ratings and Device Protection.
Power Supply. Mechanicals.
Connector Pinout.
DC Specifications.
1x Transfer Mode Timing Parameters.
2x and 4x Transfer Mode Timing Model.
Driver Characteristics.
Receiver Characteristics.
Changes to Clock Frequencies in Mobile Designs.
10. Intro To AGP Transfer Types.
Command Types and the Transfer Length.
AGP Ordering Rules.
Fence Command.
Flush Command.
11. AGP Arbitration.
The AGP Arbiter.
Maximizing Bus Usage via GNT# Pipelining.
12. AGP Request Transactions.
Two Request Generation Mechanisms.
AGP Request Queue Depth.
Issuing Transaction Requests via AD and C/BE buses.
Issuing Transaction Requests via the SBA Port.
13. AGP Data Flow Control.
Introduction.
In AGP, Data Is Transferred in Blocks.
Wait State Before First Data Block.
Inserting Wait States Between Blocks.
Data Transfer Size Can Be Less Than a Data Block.
Usage of Byte Enables.
But Minimum Data Transaction Is One Clock Long.
Three Times Where Data Transfer Can Be Delayed.
AGP Adapter's Control of Data Transfers.
North Bridge's Control of Data Transfers.
RBF# Prevents Return of Low-Priority Read Data.
14. x Data Transactions.
Introduction.
General.
Multiple Data Block Read Transaction.
Multiple Block Read Data Transfer with Wait States.
Read Data Transaction, Wait State Before First Block.
Write Data Transaction, No Initial Wait State.
Back-to-Back Write Data Transactions, No Delays.
15. x Data Transactions.
Introduction.
2x Transfer Mode Data Transactions.
Back-to-Back Read Transfers, No Wait States.
Multiple Block Read, No Wait States.
Multiple Block Write with Wait States.
Back-to-Back Write Data Transactions, Minimum Delay.
16. x Data Transactions.
Introduction.
General.
Using Strobe Falling-Edges To Latch Data.
Using Strobe Crossover Point to Latch Data.
Back-to-Back Read Data Transactions, No Wait States.
Multiple Block Read, No Wait States.
Multi-Block Read with Wait State Before 2nd Data Block.
Back-to-Back Write Data Transactions, No Wait States.
17. Fast Write Transactions.
Use of WBF# to Prevent Start of Fast Write.
Arbitration to Perform a Fast Write.
Introduction to the Fast Write Transaction.
Fast Write Transactions in 2x Mode.
Fast Write Transactions in 4x Mode.
Adapter-Initiated Premature Transaction Termination.
Master-Initiated Premature Transaction Termination.
Back-to-Back Fast Write Transactions.
Two Fast Write Transactions with No Idle in Between.
Use of the WBF# Signal.
Short, Fast Write Transactions and DEVSEL#.
18. Collision Avoidance.
Many Transaction Pairs Require Turnaround Cycle(s).
AGP Write Data Followed by Fast Write.
AGP Write Data Followed by AGP Read Data.
19. AGP Pro.
The Problem.
AGP Pro Connector.
Requires Two Adjacent PCI Connectors.
High-Power AGP Pro Card.
Low-Power AGP Pro Card.
Card Power Indication.
Power Usage.
Index. 0201700697T04062001 What Our Readers Are SayingBe the first to add a comment for a chance to win!Product Details
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