MCF5282CVM66 Freescale, MCF5282CVM66 Datasheet - Page 406
MCF5282CVM66
Manufacturer Part Number
MCF5282CVM66
Description
Manufacturer
Freescale
Datasheet
1.MCF5282CVM66.pdf
(766 pages)
Specifications of MCF5282CVM66
Cpu Family
MCF528x
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
66MHz
Interface Type
CAN/I2C/QSPI/UART
Total Internal Ram Size
64KB
# I/os (max)
150
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
3.3V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
256
Package Type
MA-BGA
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
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Queued Serial Peripheral Interface (QSPI)
22.1.2
The queued serial peripheral interface module provides a serial peripheral interface with queued transfer
capability. It allows users to queue up to 16 transfers at once, eliminating CPU intervention between
transfers. Transfer RAM in the QSPI is indirectly accessible using address and data registers.
22.1.3
Features include:
22.1.4
Because the QSPI module only operates in master mode, the master bit in the QSPI mode register
(QMR[MSTR]) must be set for the QSPI to function properly. If the master bit is not set, QSPI activity is
indeterminate. The QSPI can initiate serial transfers but cannot respond to transfers initiated by other QSPI
masters.
22.2
The module provides access to as many as 15 devices with a total of seven signals: QSPI_DOUT,
QSPI_DIN, QSPI_CLK, QSPI_CS[3:0].
Peripheral chip-select signals, QSPI_CSn, are used to select an external device as the source or destination
for serial data transfer. Signals are asserted when a command in the queue is executed. More than one
chip-select signal can be asserted simultaneously.
Although QSPI_CSn signals function as simple chip selects in most applications, up to 15 devices can be
selected by decoding them with an external 4-to-16 decoder.
22-2
•
•
•
•
•
•
•
Programmable queue to support up to 16 transfers without user intervention
— 80 bytes of data storage provided
Supports transfer sizes of 8 to 16 bits in 1-bit increments
Four peripheral chip-select lines for control of up to 15 devices (All chip selects may not be
available on all devices. See
are pinned-out.)
Baud rates from 156.9 Kbps to 20 Mbps at 80 MHz internal bus frequency
Programmable delays before and after transfers
Programmable QSPI clock phase and polarity
Supports wraparound mode for continuous transfers
External Signal Description
Overview
Features
Modes of Operation
The GPIO module must be configured to enable the peripheral function of
the appropriate pins (refer to
prior to configuring the QSPI module.
Chapter 14, “Signal Descriptions,”
Chapter 26, “General Purpose I/O
NOTE
for details on which chip-selects
Module”)
Freescale Semiconductor
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