FX3 datasheet(5/45 Pages) CYPRESS

5 / 45 page

CYUSB301X

Document Number: 001-52136 Rev. *N

Page 5 of 45

Figure 2. EZ-USB FX3 as Main Processor

USB Interface

FX3 complies with the following specifications and supports the

following features:

■ Supports USB peripheral functionality compliant with USB 3.0

Specification Revision 1.0 and is also backward compatible

with the USB 2.0 Specification.

■ Complies with OTG Supplement Revision 2.0. It supports

High-Speed, Full-Speed, and Low-Speed OTG dual-role device

capability. As a peripheral, FX3 is capable of SuperSpeed,

High-Speed, and Full-Speed. As a host, it is capable of

High-Speed, Full-Speed, and Low-Speed.

■ Supports Carkit Pass-Through UART functionality on USB

D+/D– lines based on the CEA-936A specification.

■ Supports up to 16 IN and 16 OUT endpoints.

■ Supports the USB 3.0 Streams feature. It also supports USB

Attached SCSI (UAS) device-class to optimize mass-storage

access performance.

■ As a USB peripheral, FX3 supports UAS, USB Video Class

(UVC), Mass Storage Class (MSC), and Media Transfer

Protocol (MTP) USB peripheral classes. As a USB peripheral,

all other device classes are supported only in pass-through

mode when handled entirely by a host processor external to

the device.

■ As an OTG host, FX3 supports MSC and HID device classes.

Note When the USB port is not in use, disable the PHY and

transceiver to save power.

Figure 3. USB Interface Signals

OTG

FX3 is compliant with the OTG Specification Revision 2.0. In

OTG mode, FX3 supports both A and B device modes and

supports Control, Interrupt, Bulk, and Isochronous data

transfers.

FX3 requires an external charge pump (either standalone or

integrated into a PMIC) to power VBUS in the OTG A-device

mode.

The Target Peripheral List for OTG host implementation consists

of MSC- and HID-class devices.

FX3 does not support Attach Detection Protocol (ADP).

External Slave Device

(Example: Image sensor)

EZ-USB FX3

(ARM9 Core)

GPIF II

I2C

USB

Port

Crystal *

USB Host

EEPROM

A clock input may be provided on the

CLKIN pin instead of a crystal input

EZ-USB FX3

VBATT

VBUS

SSRX-

SSRX+

SSTX-

SSTX+

D-

D+

OTG_ID

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