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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Detailed Description of Interface

The defined operation of the FT311D IC is configured using 3 GPIO pins, as shown in the table 4.1. These

GPIO pins define the interface mode required which in turn defines the IO signalling available on the

module connector CON1. This information is available in the

Signal Name

Jumper

selection

JP1

JP2

JP3

FT311D pin

Number

15

14

12

I/O

Type

Input

Input

Input

Description

CONFIG2

CONFIG1

CONFIG0

Configuration input 2

Configuration input 1

Configuration input 0

Table 4.1 : Pins used in interface mode selection

CONFIG2 or CONFIG1 or CONFIG0 is at logic 1 when the corresponding jumper is not present and at

logic 0 when the corresponding jumper is present.

4.1 Interface Mode selection

The interface mode selection is done using the CONFIG[2-0] pins. The CONFIG[2:0] pins have to be set

at this value before the chip is powered on.

Interface Mode

CONFIG2

GPIO

UART

PWM

I2C Master

SPI Slave

SPI Master

Table 4.2 : Selection of Mode

Selection of Interface Mode

CONFIG1

0

0

1

1

0

0

CONFIG0

0

1

0

1

0

1

0

0

0

0

1

1

4.1.1 GPIO Mode

In the GPIO mode the GPIO signals are available at the connector CON1, J3 and J4 as shown in the table

4.3 below.

Signal

Name

Connector

CON1

CON1 -10

CON1 -9

CON1 -8

Connector

J3, J4

J3-3

J3-4

J3-5

FT311D pin

Number

23

24

25

I/O

Type

IO

IO

IO

Description

GPIO(0)

GPIO(1)

GPIO(2)

GPIO data bit 0, bidirectional

GPIO data bit 1, bidirectional

GPIO data bit 2, bidirectional

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