MC68HC908JL8 MOTOROLA [Motorola, Inc], MC68HC908JL8 Datasheet - Page 95

• Manufacturer Part Number: MC68HC908JL8
• Description: Motorola reserves the right to make changes without further notice to any products herein
• Manufacturer: MOTOROLA [Motorola, Inc]

7.5.3 SIM Counter and Reset States
7.6 Exception Control
7.6.1 Interrupts
MC68HC908JL8
MOTOROLA
—
Rev. 2.0
External reset has no effect on the SIM counter. (See
for details.) The SIM counter is free-running after all reset states. (See
7.4.2 Active Resets from Internal Sources
internal reset recovery sequences.)
Normal, sequential program execution can be changed in three different
ways:
An interrupt temporarily changes the sequence of program execution to
respond to a particular event.
system interrupts.
Interrupts are latched, and arbitration is performed in the SIM at the start
of interrupt processing. The arbitration result is a constant that the CPU
uses to determine which vector to fetch. Once an interrupt is latched by
the SIM, no other interrupt can take precedence, regardless of priority,
until the latched interrupt is serviced (or the I bit is cleared).
•
•
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Freescale Semiconductor, Inc.
For More Information On This Product,
Interrupts
– Maskable hardware CPU interrupts
– Non-maskable software interrupt instruction (SWI)
Reset
Break interrupts
System Integration Module (SIM)
Go to: www.freescale.com
Figure 7-8
flow charts the handling of
System Integration Module (SIM)
for counter control and
7.7.2 Stop Mode
Exception Control
Technical Data
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