FT120 Просмотр технического описания (PDF) - Future Technology

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FT120

USB DEVICE CONTROLLER WITH PARALLEL BUS IC

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Table of Contents

Document No.: FT_000646

FT120 USB DEVICE CONTROLLER WITH PARALLEL BUS IC

Datasheet Version 1.2

Clearance No.: FTDI# 291

1 Typical Applications...................................................................... 2

1.1 Part Numbers...................................................................................... 2

1.2 USB Compliant .................................................................................... 2

2 Block Diagrams ............................................................................ 3

3 Device Pin Out and Signal Description .......................................... 6

3.1 TSSOP-28 Package Pin Out ................................................................. 6

3.2 QFN-28 Package Pin Out ..................................................................... 6

3.3 Pin Description ................................................................................... 7

4 Function Description..................................................................... 9

4.1 Functional Block Descriptions ............................................................. 9

4.2 Interrupt Modes................................................................................ 10

5 Endpoint Buffer Management ..................................................... 11

6 Commands and Registers ........................................................... 13

6.1 Command Summary.......................................................................... 13

6.2 Initialization Commands ................................................................... 14

6.2.1

6.2.2

6.2.3

6.2.4

Set Address Enable .................................................................................................... 14

Set Endpoint Enable ................................................................................................... 14

Set Mode .................................................................................................................. 15

Set DMA ................................................................................................................... 16

6.3 Data Flow Commands ....................................................................... 18

6.3.1 Read Interrupt Register .............................................................................................. 18

6.3.2 Select Endpoint ......................................................................................................... 19

6.3.3 Read Last Transaction Status ...................................................................................... 19

6.3.4 Read Endpoint Status ................................................................................................. 20

6.3.5 Read Buffer............................................................................................................... 21

6.3.6 Write Buffer .............................................................................................................. 21

6.3.7 Clear Buffer .............................................................................................................. 22

6.3.8 Validate Buffer .......................................................................................................... 22

6.3.9 Set Endpoint Status ................................................................................................... 22

6.3.10 Acknowledge Setup ................................................................................................ 22

6.4 General Commands ........................................................................... 23

6.4.1 Read Current Frame Number....................................................................................... 23

6.4.2 Send Resume ............................................................................................................ 23

7 Reference Schematic .................................................................. 24

8 Devices Characteristics and Ratings ........................................... 25

8.1 Absolute Maximum Ratings............................................................... 25

8.2 DC Characteristics............................................................................. 26

Copyright © 2014 Future Technology Devices International Limited

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