STM32F207IC datasheet(30/163 Pages) STMICROELECTRONICS

30 / 163 page

Description

STM32F205xx, STM32F207xx

30/163

Doc ID 15818 Rev 7

2.2.32

Controller area network (CAN)

The two CANs are compliant with the 2.0A and B (active) specifications with a bitrate up to 1

Mbit/s. They can receive and transmit standard frames with 11-bit identifiers as well as

extended frames with 29-bit identifiers. Each CAN has three transmit mailboxes, two receive

FIFOS with 3 stages and 28 shared scalable filter banks (all of them can be used even if one

CAN is used). The 256 bytes of SRAM which are allocated for each CAN are not shared

with any other peripheral.

2.2.33

Universal serial bus on-the-go full-speed (OTG_FS)

The STM32F205xx and STM32F207xx embed an USB OTG full-speed device/host/OTG

peripheral with integrated transceivers. The USB OTG FS peripheral is compliant with the

USB 2.0 specification and with the OTG 1.0 specification. It has software-configurable

endpoint setting and supports suspend/resume. The USB OTG full-speed controller

requires a dedicated 48 MHz clock that is generated by a PLL connected to the HSE

oscillator. The major features are:

●

Combined Rx and Tx FIFO size of 320 × 35 bits with dynamic FIFO sizing

●

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

●

4 bidirectional endpoints

●

8 host channels with periodic OUT support

●

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

●

Internal FS OTG PHY support

●

External FS OTG PHY support through an I2C connection

2.2.34

Universal serial bus on-the-go high-speed (OTG_HS)

The STM32F205xx and STM32F207xx devices embed a USB OTG high-speed (up to

480 Mb/s) device/host/OTG peripheral. The USB OTG HS supports both full-speed and

high-speed operations. It integrates the transceivers for full-speed operation (12 MB/s) and

features a UTMI low-pin interface (ULPI) for high-speed operation (480 MB/s). When using

the USB OTG HS in HS mode, an external PHY device connected to the ULPI is required.

The USB OTG HS peripheral is compliant with the USB 2.0 specification and with the OTG

1.0 specification. It has software-configurable endpoint setting and supports

STM32F207IC Datasheet(PDF) 30 Page - STMicroelectronics

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