MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 261

• 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

12.2.1.1
The USB module supports either an internal or external USB transceiver. USB_D+ and USB_D- drive
USB cable D+ and D- lines, respectively. With additional external protection circuitry (see
“Recommended USB Protection
Specification, Rev. 1.1. Transceiver performance specifications are described in the Chapter 7 of the
Universal Serial Bus Specification. See note on page , [p. 12-1].
When the internal transceiver is selected, (USBEPCTL0[AFEEN] is cleared), the driven outputs can be
observed by using the parallel port A if these pins are configured for USB, using the PACNT register,
17.2.1, “Port A Control Register
The USB module has separate power pins for the internal transceiver.
Freescale Semiconductor
USB_D-
USB_D+
USB_TxEN
USB_ExtCLK
USB_Susp
USB_GND
USB_VDD
USB_RxD
To USB
USB_RP
USB_RN
Cable
USB_TN
USB_TP
USB Transceiver Interface
USB_GND should always be grounded.
External Transceiver
Transceiver
Internal
MCF5272 ColdFire
Interface
Figure 12-2. USB Module Block Diagram
Circuit”), equipment can be built that complies with Universal Serial Bus
(PACNT)”.
System Clock
®
Integrated Microprocessor User’s Manual, Rev. 3
Generator
Clock
NOTE
OUT FIFO
512-Byte
USB Control
Controllers
Endpoint
Logic
Internal Bus
512-Byte
IN FIFO
Universal Serial Bus (USB)
USB Request
Configuration
1024-Byte
Processor
RAM
12.5.3,
12-3