MC68EC030CFE25C Freescale Semiconductor, MC68EC030CFE25C Datasheet - Page 199
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MC68EC030CFE25C
Manufacturer Part Number
MC68EC030CFE25C
Description
IC MPU 32BIT ENH 25MHZ 132-CQFP
Manufacturer
Freescale Semiconductor
Specifications of MC68EC030CFE25C
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-CQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68EC030CFE25C
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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o s A c , 0 ~ \
A,.~--_X
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SlZ1 =--'~
si z e
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CLK
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A0-~
State 0
SO
Figure 7-25. Asynchronous Read-Write-Read C y c l e s - 32-Bit Port
The write cycle starts in SO. The processor drives ECS low, indicating the
of a write operation, OCS is driven low at the same time. During SO, the
beginning of an external cycle. When the cycle is the first external cycle
processor places a valid address on A0-A31 and valid function codes on
FC0-FC2. The function codes select the address space for the cycle. The
processor drives R/W low for a write cycle. SIZ0-SIZ1 become valid, in-
dicating the number of bytes to be transferred. CLOUT also becomes valid,
or in the appropriate TTx register.
indicating the state of the MMU CI bit in the address translation descriptor
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