UM0851 datasheet(69/245 Pages) STMICROELECTRONICS

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UM0851

Communication device drivers

Doc ID 16604 Rev 2

69/245

If you have a USB keyboard, mouse, joystick, or any other input device, you need to

enable HID support. Go back one level to "Device drivers" and enable HID support as

shown:

Device Drivers --->

[*] HID Devices

--->

<*>

USB Human Interface Device (full HID) support

If you have a USB modem, you need to enable USB Modem(CDC ACM) support as shown above

along with the following supports:

Device Drivers ---->

[*] Network device support--->

USB Network Adapters--->

<*> Multi-Purpose USB Networking Framework

4.4

USB Device

4.4.1

Hardware overview

SPEAr600 provides a Synopsys®'s USB 2.0 Device controller which is fully compliant with

the universal serial bus specification (version 2.0), and offers an interface to the industry-

standard AHB bus.

The main features provided by the USB 2.0 Device are listed below:

●

USB plug detect (UPD) which detects the connection/disconnection of a device

●

UDC-AHB supports 480 Mbps high-speed (HS) for USB 2.0, as well as 12 Mbps full-

speed (FS) for USB 1.1

●

UDC-AHB supports 16 physical unidirectional endpoints and proper configurations to

achieve logical endpoints

●

Both DMA mode and slave-only mode supported

●

In DMA mode, the UDC-AHB supports descriptor-based memory structures in

application memory

●

Multiple RxFIFO controllers supported for each OUT endpoint. This gives flexibility in

configuring different FIFO sizes for each endpoint.

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