Freescale Semiconductor TWR-MCF52259-Ethenet User Manual page 106

The Enumeration Process:
//------------------------------------------------------------
// Sample Standard Device Descriptor Type
// Definition Fields
//------------------------------------------------------------
Length (18)
Descriptor Type (DEVICE, CONFIGURATION,
INTERFACE, ENDPOINT, HID)
USB Spec Release Number (0200h)
Device class (hub type...Human Interface defined in
other descriptor, CDC described here)
Device Sub-class (00h)
Device protocol (00h)
Maximum Packet size (64 bytes – max for the
Vendor ID (ID assigned by USB IF)
Product ID (ID assigned by product manufacturer)
Device release number (revision code of device)
Manufacturer (ABC Corp)
Product (string identifier)
Serial Number (1234)
Number of configurations (1 or more configurations
endpoint)
can follow)
What happens when a device is connected?
Here is your unique address.
What device class are you?
What transfer mode do you want?
Do you supply the power or do I?
How many and of what type of
endpoints do you need?
Host
TM