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DS_FT311D Scheda tecnica(PDF) 8 Page - Future Technology Devices International Ltd.

Il numero della parte DS_FT311D
Spiegazioni elettronici  The FT311D is a Full Speed USB host specifically targeted at providing access to peripheral hardware from an Android platform with a USB device port.
PDF  40 Pages
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Produttore elettronici  FTDI [Future Technology Devices International Ltd.]
Homepage  http://www.ftdichip.com
Logo FTDI - Future Technology Devices International Ltd.

DS_FT311D Scheda tecnica(HTML) 8 Page - Future Technology Devices International Ltd.

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Copyright © 2012 Future Technology Devices International Limited
8
DS_FT311D USB ANDROID HOST IC Datasheet
Version 1.0
Document No.: FT_000660 Clearance No.: FTDI# 305
29
IOBUS4
INPUT/OUTPUT
I/O signal. Function depends on CNFG pin setting. See table 3.4
30
IOBUS5
INPUT/OUTPUT
I/O signal. Function depends on CNFG pin setting. See table 3.4
31
IOBUS6
INPUT/OUTPUT
I/O signal. Function depends on CNFG pin setting. See table 3.4
Table 3.3 Interface Pins
Notes:
1. When used in Input Mode, the input pins are pulled to VCCIO via internal 75kΩ (approx.) resistors.
3.2 Interface Selection
The FT311D has multiple interfaces available for connecting to external devices. The resources available
are GPIO, UART, PWM, I2C(Master), SPI(Slave) and SPI(Master). The selection of what interface the user
requires is configured using the CNFG0, CNFG1 and CNFG2 input pins as per table 3.4.
CNFG2
CNFG1
CNFG0
Mode
GND
GND
GND
GPIO
GND
GND
Leave
Open
UART
GND
Leave
Open
GND
PWM
GND
Leave
Open
Leave
Open
I2C (Master)
Leave
Open
GND
GND
SPI (Slave)
Leave
Open
GND
Leave
Open
SPI (Master)
Table 3.4 CBUS Configuration Control
Note 1: When left open the pin is a logic 1.
Note 2: Mode “110” is a factory test mode and should not be used.
Note 3: Mode “111” will default to GPIO mode.
3.2.1 Interface pinout
The actual pinout for each interface type is detailed in table 3.5
Pin No
Pin
Name
GPIO
UART
PWM
I2C
(Master)
SPI
(Slave)
SPI
(Master)
23
IOBUS0
GPIO0
UART_TXD
PWM0
I2C_CLK
-
-
24
IOBUS1
GPIO1
UART_RXD
PWM1
I2C_DATA
-
-
25
IOBUS2
GPIO2
UART_RTS
#
PWM2
-
-
-
26
IOBUS3
GPIO3
UART_CTS
#
PWM3
-
SPI_S_SS0
SPI_M_SS0



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