STM32F469AE datasheet(44/217 Pages) STMICROELECTRONICS

44 / 217 page

Functional overview

STM32F469xx

44/217

DocID028196 Rev 3

The major features are:

•

Combined Rx and Tx FIFO size of 4 KB with dynamic FIFO sizing

•

Supports the session request protocol (SRP) and host negotiation protocol (HNP)

•

8 bidirectional endpoints

•

16 host channels with periodic OUT support

•

Software configurable to OTG1.3 and OTG2.0 modes of operation

•

USB 2.0 LPM (Link Power Management) support

•

Internal FS OTG PHY support

•

External HS or HS OTG operation supporting ULPI in SDR mode. The OTG PHY is

connected to the microcontroller ULPI port through 12 signals. It can be clocked using

the 60 MHz output.

•

Internal USB DMA

•

HNP/SNP/IP inside (no need for any external resistor)

•

for OTG/Host modes, a power switch is needed in case bus-powered devices are

connected

2.37

Digital camera interface (DCMI)

The devices embed a camera interface that can connect with camera modules and CMOS

sensors through an 8-bit to 14-bit parallel interface, to receive video data. The camera

interface can sustain a data transfer rate up to 54 Mbyte/s at 54 MHz. It features:

•

Programmable polarity for the input pixel clock and synchronization signals

•

Parallel data communication can be 8-, 10-, 12- or 14-bit

•

Supports 8-bit progressive video monochrome or raw bayer format, YCbCr 4:2:2

progressive video, RGB 565 progressive video or compressed data (like JPEG)

•

Supports continuous mode or snapshot (a single frame) mode

•

Capability to automatically crop the image black & white.

2.38

Random number generator (RNG)

All devices embed an RNG that delivers 32-bit random numbers generated by an integrated

analog circuit.

2.39

General-purpose input/outputs (GPIOs)

Each of the GPIO pins can be configured by software as output (push-pull or open-drain,

with or without pull-up or pull-down), as input (floating, with or without pull-up or pull-down)

or as peripheral alternate function. Most of the GPIO pins are shared with digital or analog

alternate functions. All GPIOs are high-current-capable and have speed selection to better

manage internal noise, power consumption and electromagnetic emission.

The I/O configuration can be locked if needed by following a specific sequence in order to

avoid spurious writing to the I/Os registers.

Fast I/O handling allowing maximum I/O toggling up to 90 MHz.

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