MCF5282CVM66 Freescale, MCF5282CVM66 Datasheet - Page 273

• Manufacturer Part Number: MCF5282CVM66
• Manufacturer: Freescale

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

Chapter 15
Synchronous DRAM Controller Module
This chapter describes configuration and operation of the synchronous DRAM (SDRAM) controller. It
begins with a general description and brief glossary, and includes a description of signals involved in
DRAM operations. The remainder of the chapter describes the programming model and signal timing, as
well as the command set required for synchronous operations. It also includes extensive examples that the
designer can follow to better understand how to configure the DRAM controller for synchronous
operations.
15.1
The synchronous DRAM controller module provides glueless integration of SDRAM with the ColdFire
product. The key features of the DRAM controller include the following:
15.1.1
The following terminology is used in this chapter:
15.1.2
The basic components of the SDRAM controller are shown in
Freescale Semiconductor
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Support for two independent blocks of SDRAM
Interface to standard SDRAM components
Programmable SRAS, SCAS, and refresh timing
Support for 8-, 16-, and 32-bit wide SDRAM blocks
SDRAM block: Any group of DRAM memories selected by one of the SRAS[1:0] signals. Thus,
the processor can support two independent memory blocks. The base address of each block is
programmed in the DRAM address and control registers (DACR0 and DACR1).
SDRAM: RAMs that operate like asynchronous DRAMs but with a synchronous clock, a
pipelined, multiple-bank architecture, and a faster speed.
SDRAM bank: An internal partition in an SDRAM device. For example, a 64-Mbit SDRAM
component might be configured as four 512K x 32 banks. Banks are selected through the SDRAM
component’s bank select lines.
Overview
Block Diagram and Major Components
Definitions
Figure
15-1.
15-1