MCF5307CFT66B Freescale Semiconductor, MCF5307CFT66B Datasheet - Page 279

• Manufacturer Part Number: MCF5307CFT66B
• Description: IC MPU 32BIT 66MHZ COLDF 208FQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF530xr

Specifications of MCF5307CFT66B

• Core Processor: Coldfire V3
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: EBI/EMI, I²C, UART/USART
• Peripherals: DMA, POR, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-FQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Chapter 12
DMA Controller Module
This chapter describes the MCF5307 DMA controller module. It provides an overview of
the module and describes in detail its signals and registers. The latter sections of this
chapter describe operations, features, and supported data transfer modes in detail.
12.1 Overview
The direct memory access (DMA) controller module provides an efficient way to move
blocks of data with minimal processor interaction. The DMA module, shown in
Figure 12-1, provides four channels that allow byte, word, or longword operand transfers.
Each channel has a dedicated set of registers that define the source and destination
addresses (SARn and DARn), byte count (BCRn), and control and status (DCRn and
DSRn). Transfers can be dual or single address to off-chip devices or dual address to
on-chip devices, such as UART, SDRAM controller, and parallel port.
Read Bus Data
Data Path
Requests
External
Internal
Bus
Requests
Channel
Write Bus Data
Freescale Semiconductor, Inc.
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Figure 12-1. DMA Signal Diagram
Chapter 12. DMA Controller Module
Channel 0
DAR0
BCR0
DCR0
DSR0
SAR0
Data Path
Control
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Channel
Enables
Control
Channel 1
MUX
SAR1
DAR1
BCR1
DCR1
DSR1
Arbitration/
Control
MUX
Channel 2
Channel
Attributes
BCR2
DCR2
DSR2
SAR2
DAR2
Current Master Attributes
External Bus Address
External Bus Size
Channel 3
DCR3
SAR3
DAR3
BCR3
DSR3
Interrupts
Interface Bus
Bus Signals
Registered
12-1