EZ-USB datasheet(4/334 Pages) CYPRESS

4 / 334 page

EZ-USB TRM v1.9

Table of Contents

EZ-USB

Technical Reference Manual

Table of Contents

Table ofContents .................................................. i

Figures ......................................................... vii

Tables .......................................................... xi

Introducing EZ-USB ......................................................................1-1

1.1

Introduction ............................................................................................. 1-1

1.2

EZ-USB Block Diagrams ....................................................................... 1-2

1.3

The USB Specification ........................................................................... 1-3

1.4

Tokens and PIDs ..................................................................................... 1-4

1.5

Host is Master ......................................................................................... 1-5

1.5.1

Receiving Data from the Host .................................................. 1-6

1.5.2

Sending Data to the Host ......................................................... 1-6

1.6

USB Direction ......................................................................................... 1-6

1.7

Frame ...................................................................................................... 1-6

1.7.1

Bulk Transfers .......................................................................... 1-7

1.7.2

Interrupt Transfers ................................................................... 1-7

1.8

EZ-USB Transfer Types ......................................................................... 1-7

1.8.1

Isochronous Transfers ............................................................. 1-8

1.8.2

Control Transfers ..................................................................... 1-8

1.9

Enumeration ............................................................................................ 1-9

1.10

The USB Core ....................................................................................... 1-10

1.11

EZ-USB Microprocessor ...................................................................... 1-11

1.12

ReNumeration‘ ...................................................................................... 1-12

1.13

EZ-USB Endpoints ............................................................................... 1-12

1.13.1

EZ-USB Bulk Endpoints ......................................................... 1-13

1.13.2

EZ-USB Control Endpoint Zero ............................................ 1-13

1.13.3

EZ-USB Interrupt Endpoints ................................................. 1-14

1.13.4

EZ-USB Isochronous Endpoints ............................................ 1-14

1.14

Fast Transfer Modes ............................................................................. 1-14

1.15

Interrupts ............................................................................................... 1-15

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