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FT121Q-x

更新时间: 2024-01-23 19:13:14
品牌 Logo 应用领域
飞特帝亚 - FTDI /
页数 文件大小 规格书
46页 1092K
描述
Enhanced USB Device Controller with SPI Slave IC

FT121Q-x 数据手册

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Document No.: FT_000648  
FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC  
Datasheet Version 1.2  
Table of Contents  
1
Typical Applications...................................................................... 2  
1.1 Part Numbers...................................................................................... 2  
1.2 USB Compliant.................................................................................... 2  
Block Diagrams ............................................................................ 3  
Device Pin Out and Signal Description.......................................... 6  
3.1 TSSOP-16 Package Pin Out ................................................................. 6  
3.2 QFN-16 Package Pin Out..................................................................... 6  
3.3 Pin Description ................................................................................... 7  
Function Description..................................................................... 9  
4.1 Functional Block Descriptions............................................................. 9  
4.2 Interrupt Modes................................................................................ 10  
2
3
4
4.3 SPI Slave Interface........................................................................... 10  
4.3.1 4-wire write operation................................................................................................ 11  
4.3.2 4-wire read operation................................................................................................. 11  
4.3.3 3-wire write operation................................................................................................ 12  
4.3.4 3-wire read operation................................................................................................. 12  
5
6
Endpoint Buffer Management ..................................................... 14  
5.1 Endpoint Buffer Management in Default Mode .................................. 14  
5.2 Endpoint Buffer Management in Enhanced Mode .............................. 15  
Commands and Registers ........................................................... 17  
6.1 Command Summary.......................................................................... 17  
6.2 Initialization Commands................................................................... 22  
6.2.1 Set Address Enable.................................................................................................... 22  
6.2.2 Set Endpoint Enable................................................................................................... 22  
6.2.3 Set Mode.................................................................................................................. 22  
6.2.4 Set Interrupt............................................................................................................. 24  
6.2.5 Set Endpoint Configuration (for Enhanced Mode) ........................................................... 24  
6.3 Data Flow Commands ....................................................................... 25  
6.3.1 Read Interrupt Register.............................................................................................. 25  
6.3.2 Select Endpoint ......................................................................................................... 27  
6.3.3 Read Last Transaction Status ...................................................................................... 27  
6.3.4 Read Endpoint Status................................................................................................. 28  
6.3.5 Read Buffer............................................................................................................... 29  
6.3.6 Write Buffer .............................................................................................................. 29  
6.3.7 Clear Buffer .............................................................................................................. 29  
6.3.8 Validate Buffer .......................................................................................................... 29  
6.3.9 Set Endpoint Status ................................................................................................... 30  
6.3.10  
Acknowledge Setup ................................................................................................ 30  
Copyright © 2014 Future Technology Devices International Limited  
4

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