CONFIG0 FTDI [Future Technology Devices International Ltd.], CONFIG0 Datasheet - Page 7

• Manufacturer Part Number: CONFIG0
• Description: The FT311D Development Module is a development module which utilises the FT311D IC to develop USB accessories connecting to Android platforms via Android Open Accessory mode.
• Manufacturer: FTDI [Future Technology Devices International Ltd.]

4
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
CONFIG2
CONFIG1
CONFIG0
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.
GPIO
UART
PWM
I2C Master
SPI Slave
SPI Master
Table 4.2 : Selection of Mode
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
GPIO(0)
GPIO(1)
GPIO(2)
Interface Mode
Detailed Description of Interface
Connector
CON1
CON1 -10
CON1 -9
CON1 -8
Copyright © 2012 Future Technology Devices International Limited
Jumper
selection
JP1
JP2
JP3
Connector
J3, J4
J3-3
J3-4
J3-5
CONFIG2
FT311D pin
Number
15
14
12
0
0
0
0
1
1
FT311D pin
Number
23
24
25
Selection of Interface Mode
USB ANDROID HOST MODULE Datasheet
I/O
Type
Input
Input
Input
I/O
Type
IO
IO
IO
Document No.: FT_000689 Clearance No.: FTDI# 303
CONFIG1
FT311D Datasheet
0
0
1
1
0
0
Description
Configuration input 2
Configuration input 1
Configuration input 0
Description
GPIO data bit 0, bidirectional
GPIO data bit 1, bidirectional
GPIO data bit 2, bidirectional
DS_UMFT311EV
CONFIG0
0
1
0
1
0
1
Version 1.0
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