MC68MH360EM25L Freescale Semiconductor, MC68MH360EM25L Datasheet - Page 183

• Manufacturer Part Number: MC68MH360EM25L
• Description: IC MPU QUICC ETHER 25MHZ 240FQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360EM25L

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 240-FQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

.
When the aborted bus cycle is an instruction prefetch, the processor will not initiate excep-
tion processing unless the prefetched information is used. For example, if a branch instruc-
tion flushes an aborted prefetch, that word is not accessed, and no exception occurs.
When the aborted bus cycle is a data access, the processor initiates exception processing
immediately, except in the case of released operand writes. Released write bus errors are
delayed until the next instruction boundary or until another operand access is attempted.
Exception processing for bus error exceptions follows the regular sequence, but context
preservation is more involved than for other exceptions because a bus exception can be ini-
MOTOROLA
Freescale Semiconductor, Inc.
Figure 5-11. Reset Operation Flowchart
PREFETCH 3 WORDS
(VECTOR # 0)
(VECTOR # 1)
FETCH VECTOR # 0
FETCH VECTOR # 1
OTHERWISE BEGIN
For More Information On This Product,
INSTRUCTION
OTHERWISE
OTHERWISE
EXECUTION
$7
$0
ENTRY
1
0
EXIT
S
T0,T1
I2:IO
VBR
MC68360 USER’S MANUAL
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SP
PC
BUS ERROR
BUS ERROR
BUS ERROR/
ADDRESS
ERROR
ASSERT HALT
EXIT
(DOUBLE BUS FAULT)
CPU32+
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