MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 133
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MCF5270CAB100
Manufacturer Part Number
MCF5270CAB100
Description
MCU V2 COLDFIRE 64K SRAM 160-QFP
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Specifications of MCF5270CAB100
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
100MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, UART/USART
Peripherals
DMA, WDT
Number Of I /o
39
Program Memory Type
ROMless
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
160-QFP
Processor Series
MCF527x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5270CAB100
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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6.2.4
As noted previously, depending on the configuration defined by the RAMBAR, instruction fetch
and operand read accesses may be sent to the SRAM and cache simultaneously. If the access is
mapped to the SRAM module, it sources the read data and the unified cache access is discarded.
If the SRAM is used only for data operands, setting the ASn bits associated with instruction fetches
can decrease power dissipation. Additionally, if the SRAM contains only instructions, masking
operand accesses can reduce power dissipation.
RAMBAR settings.
Freescale Semiconductor
Power Management
Table 6-2. Typical RAMBAR Setting Examples
Both Instructions And Data
Data Contained in SRAM
Instruction Only
Data Only
MCF5271 Reference Manual, Rev. 2
Table 6-2
RAMBAR[7:0]
0x2B
0x35
0x21
shows some examples of typical
Register Description
6-5
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