MCF5253VM140J Freescale Semiconductor, MCF5253VM140J Datasheet - Page 230

• Manufacturer Part Number: MCF5253VM140J
• Description: IC MCU 2.1MIPS 140MHZ 225MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253VM140J

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 70°C
• Package / Case: 225-MAPBGA
• Processor Series: MCF525x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

DMA Controller
14.2.1
These internal request signals are DMA inputs. There is one input for each of the four DMA channels. The
request sources are selectable by programming the DMAROUTE register. Each DMA channel is
programmable individually.
The internal signals are asserted by a peripheral device to request an operand transfer between that
peripheral and memory.
14-2
DMA Request
INTERNAL
REQUESTS
INTERNAL
BUS
REQUESTS
CHANNEL
READ BUS
DATA
DATAPATH CONTROL
CHANNEL0
DATAPATH
STATUS
CNTRL
SAR
DAR
BCR
MUX CONTROL
Figure 14-1. DMA Signal Diagram
MCF5253 Reference Manual, Rev. 1
WRITE BUS
DATA
ATTRIBUTES
ATTRIBUTES
CURRENT
MASTER
CHANNEL
CHANNEL1
STATUS
CNTRL
SAR
DAR
BCR
ARBITRATION/
CONTROL
MUX
CHANNEL2
STATUS
CNTRL
SAR
DAR
BCR
EXTERNAL
BUS ADDRESS
EXTERNAL
BUS SIZE
CHANNEL
ENABLES
CHANNEL3
STATUS
INTERFACE
CNTRL
SAR
DAR
BCR
BUS
BUS SIGNALS
REGISTERED
INTERRUPTS
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