Revision 1.3

Mar.22 2001

-1-

GL646USB

Index

1. GENERAL DESCRIPTION ........................................................................2

2. FEATURES....................................................................................................2

3. SYSTEM BLOCK DIAGRAM....................................................................4

3.1

USB 1.1 System Block Diagram ................................................................................................... 4

3.2

USB 2.0 System Block Diagram ................................................................................................... 4

3.3

IEEE 1394 System Block Diagram................................................................................................ 4

4. FUNCTION BLOCK DIAGRAM ...............................................................5

5. HARDWARE DESCRIPTION....................................................................6

5.1

Pins Assignment & Mode Definition:............................................................................................ 6

5.2

Pin Descriptions :........................................................................................................................... 8

5.3

Electrical Characteristics: ............................................................................................................ 11

6. Application Description ..............................................................................12

7. COMMAND SET DESCRIPTION ...........................................................21