MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 287

• Manufacturer Part Number: MCF5272VF66
• Manufacturer: Freescale

Specifications of MCF5272VF66

• Family Name: MCF5xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 66MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 196
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Not Compliant

A device may support multiple configurations. Within any one configuration, the device may support
multiple interfaces. An interface consists of a set of endpoints that presents to the host a single feature or
function of the device. An interface within a configuration may have alternate settings that redefine the
characteristics of the associated endpoints. All devices must provide a device descriptor and at least one
configuration, interface and endpoint descriptor. Each configuration must have at least one interface and
one endpoint descriptor. Only one configuration is effective at any time, but several interfaces and their
related endpoints may be operational at the same time. Only one setting for a particular interface is
effective at any time.
12.3.3.2
The example descriptor structure in
to Chapter 9 of the USB Specification for information on the contents of each descriptor.
This example is described in the configuration RAM sequence shown below. The device descriptor begins
at address MBAR + 0x1400. Each descriptor must immediately follow the previous descriptor without any
empty locations between them.
Freescale Semiconductor
1. Device Descriptor
2. Configuration #1 Descriptor
3. Interface #0 Descriptor
4. Endpoint #1 Descriptor
5. Endpoint #2 Descriptor
6. Interface #1 Descriptor
7. Endpoint #3 Descriptor
8. Configuration #2 Descriptor
Endpoint #1
Descriptor
USB Device Configuration Example
Interface #0
Descriptor
Figure 12-23. Example USB Configuration Descriptor Structure
MCF5272 ColdFire
Endpoint #2
Descriptor
Configuration #1
Descriptor
Figure 12-23
®
Interface #1
Endpoint #3
Descriptor
Descriptor
Integrated Microprocessor User’s Manual, Rev. 3
Descriptor
Device
shows a device with three different configurations. Refer
Configuration #2
Endpoint #1
Interface #0
Descriptor
Descriptor
Descriptor
Endpoint #1
Descriptor
Configuration #3
Interface #0
Descriptor
Descriptor
Universal Serial Bus (USB)
Endpoint #2
Descriptor
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