MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 339
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MCF5272VF66
Manufacturer Part Number
MCF5272VF66
Description
Manufacturer
Freescale
Datasheet
1.MCF5272VF66.pdf
(544 pages)
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
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Chapter 14
Queued Serial Peripheral Interface (QSPI) Module
This chapter describes the queued serial peripheral interface (QSPI) module. Following a feature-set
overview is a description of operation including details of the QSPI’s internal RAM organization. The
chapter concludes with the programming model and a timing diagram.
14.1
The queued serial peripheral interface module provides a serial peripheral interface with queued transfer
capability. It allows users to enqueue up to 16 transfers at once, eliminating CPU intervention between
transfers. Transfer RAMs in the QSPI are indirectly accessible using address and data registers.
Functionality is very similar, but not identical, to the QSPI portion of the QSM (queued serial module)
implemented in the MC68332.
14.2
14.3
The QSPI module communicates with the integrated ColdFire CPU using internal memory mapped
registers located starting at MBAR + 0xA0. See also
diagram of the QSPI module is shown in
Freescale Semiconductor
•
•
•
•
•
•
•
Programmable queue to support up to 16 transfers without user intervention
Supports transfer sizes of 8 to 16 bits in 1-bit increments
Four peripheral chip-select lines for control of up to 15 devices
Baud rates from 129.4 Kbps to 16.5 Mbps at 66 MHz
Programmable delays before and after transfers
Programmable clock phase and polarity
Supports wraparound mode for continuous transfers
Overview
Features
Module Description
MCF5272 ColdFire
®
Integrated Microprocessor User’s Manual, Rev. 3
Figure
14-1.
Section 14.5, “Programming
Model.” A block
14-1
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