DS_UMFT311EV 参数 Datasheet PDF下载

DS_UMFT311EV

USB ANDROID HOST MODULE Datasheet

Document No.: FT_000689 Clearance No.: FTDI# 303

Version 1.0

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Function Description

The FT311D Development Module is intended for use as a hardware platform to enable easy evaluation of

FTDI’s FT311D Android Open Accessory USB Host controller. The FT311D Development Module includes

all the necessary components required by a user to begin developing Android Open Accessory

applications based on the FT311D device. The FT311D Development Module behaves like a bridge

between an Android device and the various I/O available. Selection of various modes is performed using

CONFIG[2:0] pins as shown in the Table 4.2.

3.1 Key Features

Easy to use Android Open Accessory Module translating the USB Device port of the android tablet into

any one of the six selectable interfaces like GPIO, UART, PWM, I

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C Master, SPI Slave or SPI Master.

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Selection of interface mode using jumpers JP1, JP2 and JP3

USB Type-A connector CN1 for connecting to Android USB slave peripherals.

IO port connectors CON1 / J3 and J4 used for the interface signals based on the

selected interface mode.

3.2 Functional Block Descriptions

The following paragraphs describe each function within the FT311D Development Module. Please refer to

the block diagram shown in

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Interface Mode Selection

Interface Mode selection is done using CONFIG[2:0] pins. Refer to chapter 4 for the details.

USB Host

USB Host port at CN1 is used for connecting the Android Open Accessory device. The USB host port does

not support other USB device classes.

Interface Signals

The interface signals at CON1 are based on the mode selected by the Interface Mode Selection.

Programming Port

The Programming Port at J7 is used for re-programming the FT311D device with new ROM file.

(NOTE: This is unlikely to be required as the module is delivered ready to use).

Copyright © 2012 Future Technology Devices International Limited

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