MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 312

• 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

External Interface Module (EIM)
edge of the second cycle of the bus transfer.
Note that fast termination cannot be used with internal termination.
Figure 17-10
17.5.6 Back-to-Back Bus Cycles
The MCF5271 runs back-to-back bus cycles whenever possible. For example, when a longword
read is started on a word-size bus, the processor performs two back-to-back word read accesses.
Back-to-back accesses are distinguished by the continuous assertion of TIP throughout the cycle.
Figure 17-11
17-10
A[31:0], TSIZ[1:0]
A[31:0], TSIZ[1:0]
CSn, BSn, OE
shows a read back-to-back with a write.
shows a write cycle with fast termination.
CSn, BSn
CLKOUT
CLKOUT
D[31:0]
D[31:0]
R/W
R/W
TIP
TIP
TS
TS
TA
TA
Figure 17-10. Write Cycle with Fast Termination
Figure 17-9. Read Cycle with Fast Termination
MCF5271 Reference Manual, Rev. 2
S0
S0
Figure 17-9
S1
S1
Read
S4
S4
shows a read cycle with fast termination.
Write
S5
S5
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