1. IEEE 1394, USB, and AGP High Speed Transfer

2. AGP Accelerated Graphics Port
Intended to create a faster means of retrieving data from the computer to the graphics card
Simply enhanced from the PCI architecture
Designed by Intel Corporation

3. AGP – Purpose Of Design
As technology progresses and overall demand increases, the demand from the user for fast and smooth flowing graphics also increases
Software demands are continuously growing
3D Rendering has a high demand for memory bandwidth

4. AGP vs. PCI Enhanced from PCI architecture running at 66 MHz
Four Enhancements Made:
Deeply Pipelined memory read and write operations, fully hiding memory access latency
Demultiplexing of address and data on bus to allow almost 100% bus efficiency
New AC timing in the 3.3v electrical specification that provides for one or two data transfers per 66-MHz clock cycle, allowing for data throughput in excess of 500 MB/s
A new low voltage electrical specification that allows four data transfers per 66MHz clock cycle, providing real data throughput of up to 1 GB/s
Intel Corporation (AGP Interface Specification)

5. AGP vs. PCI
Architecture of AGP is identical to PCI except for the four enhancements of AGP
AGP’s work on an independent bus than that of the PCI ports
The physical make-up of PCI cards and AGP cards are not interchangeable

6. IEEE 1394 Created by Apple in 1986 IEEE standard 1394 created 1995
FireWire
IEEE standard 1394 created 1995
High speed data transfer
Up to 400 mb/s
Working on 1 gb/s
Much faster than IDE and SCSI

7. IEEE 1394 – Cable Design
6 wires
Two power
Two twisted pairs

8. IEEE 1394 – Limitations 1394 Cable can not exceed 4.5 meters
Can be increased
devices can be connected in a chain
Non-cyclical

9. IEEE 1394 – Application
Video
Audio
Hard Drives
DVD

10. USB Universal Serial Bus Designed by Intel Corporation
Originally Designed for:
Connection of PC to Telephone
Ease-Of-Use
Port Expansion

11. USB 2
USB 2 was born as a modification of the original USB architecture
Designed to deal with the increasing technology demand and increasing need to deal with large amounts of data
Digital Media is a perfect example of increasing needs to deal with large amounts of data due to high resolution pictures and movies which create high density files

12. USB 1 vs. USB 2
USB 1
Minimum transfer rate of 1.5 MB/s
Maximum transfer rate of 12 MB/s
USB 2
Maximum transfer rate of 480 MB/s
USB 2 has a maximum transfer rate 40x faster than USB 1!

13. USB - Connectors
Connector A is commonly located upstream from the host
It usually connects to the PC
Connector B is commonly located downstream from the USB device
It usually connects to the peripheral

14. USB – So Much More
There is a much more complex system behind USB than what has been shown here
USB often supplies its peripherals with its own power supply, indicating a sophisticated electrical system
Most of the concepts are out of our comprehension at this point
These concepts can be found in the USB Specification found at