FT311D-32Q1C-T FTDI, FT311D-32Q1C-T Datasheet - Page 16

• Manufacturer Part Number: FT311D-32Q1C-T
• Description: USB Interface IC USB Android Host Controller IC QFN-32
• Manufacturer: FTDI

Specifications of FT311D-32Q1C-T

• Rohs: yes
• Product: USB 2.0
• Interface Type: I2C, UART, USB
• Operating Supply Voltage: 0 V to 3.63 V
• Operating Supply Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32

5.5.2 Serial Peripheral Interface – Slave
Figure 5-4 SPI Slave block diagram
FT311D has an SPI Slave module that uses four wire interfaces: MOSI, MISO, CLK and SS#. An SPI
transfer can only be initiated by the SPI Master and begins with the slave select signal being asserted.
This is followed by a data byte being clocked out with the master supplying CLK. The master always
supplies the first byte, which is called a command byte. After this the desired number of data bytes are
transferred before the transaction is terminated by the master de-asserting slave select. An SPI Master is
able to abort a transfer at any time by de-asserting its SS# output. This will cause the Slave to end its
current transfer and return to idle state.
5.5.2.1 SPI Slave Signal Descriptions
Table 5.4 Data and Control Bus Signal Mode Options - SPI Slave Interface
5.5.3 Serial Peripheral Interface – SPI Master
Figure 5-5 SPI Master block diagram
The SPI Master interface is used to interface to applications such as Real time clocks and audio codecs.
The SPI Master provides the following features:
Pin No
29
30
31
26
spi_s0_mosi
spi_s0_miso
spi_s0_ss#
spi_s0_clk
Name
Copyright © 2012 Future Technology Devices International Limited
External - SPI Master
FT311 - SPI Master
Output
Input
Input
Input
Type
Synchronous data from master to slave
Synchronous data from slave to master
DS
_FT311D
Master Out Slave In
Master In Slave Out
Slave clock input
MOSI
MISO
MOSI
MISO
Slave select
CLK
SS#
CLK
SS#
Description
USB ANDROID HOST IC Datasheet
Document No.: FT_000660 Clearance No.: FTDI# 305
External - SPI Slave
FT311 - SPI Slave
Version 1.0
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