FT931Q-R datasheet(14/65 Pages) BRIDGETEK

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FT93x Datasheet Embedded Microcontroller Datasheet

Version 1.5

Document Reference No.: BRT_000051

Clearance No.: BRT#049

No.

Name

Type

Description

SPIM_MISO/SPIS_MISO/

GPIO35

I/O

GPIO35 input/output. (By default is GPIO input,

internal pull-low)

Master in slave out for SPI master.

Master in slave out for SPI slave.

SPIM_MOSI/SPIS_MOSI/

GPIO36

I/O

GPIO36 input/output. (By default is GPIO input,

internal pull-low)

Master out slave in for SPI master.

Master out slave in for SPI slave.

SPIM_IO2/SPIS_SS/

GPIO37

I/O

GPIO37 input/output. (By default is GPIO input,

internal pull-low)

Data line 2 input/output for SPI master quad mode.

Slave select input for SPI slave.

SPIM_IO3/RTC_REF/GPIO38

I/O

GPIO38 input/output. (By default is GPIO input,

internal pull-low)

Data line 3 input/output for SPI master quad mode.

Reference clock for RTC calibration.

VCCIO3V3

+3.3V supply voltage.

This is the supply voltage for all the I/O ports.

Connect a 0.1uF decoupling capacitor.

GND

Ground.

VCC1V2

+1.2V core voltage.

RESETN

Chip reset input for normal operation. Active low.

Connect external 10k pull-up to VCC3V3 for safe

operation.

STESTRESETN

Chip reset input for test mode.

Short to Ground for normal operation.

DEBUG

I/O

One-wire debugger interface input/output.

VBUS_DTC/GPIO39

I/O

GPIO39 input/output. (By default is GPIO input,

internal pull-low)

USB Device VBUS detection.

SPIS_CLK/SD_CLK/GPIO0

I/O

GPIO0 input/output. (By default is GPIO input,

internal pull-low)

Serial clock input for SPI slave.

SD card serial clock output.

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