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MC68HC908GR4MP Datasheet(PDF) 50 Page - Freescale Semiconductor, Inc

Part # MC68HC908GR4MP
Description  M68HC08 Microcontrollers
PDF  286 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC68HC908GR4MP Datasheet(HTML) 50 Page - Freescale Semiconductor, Inc

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Resets and Interrupts
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
50
Freescale Semiconductor
4.3.2.1 SWI Instruction
The software interrupt instruction (SWI) causes a non-maskable interrupt.
NOTE
A software interrupt pushes PC onto the stack. An SWI does not push
PC – 1, as a hardware interrupt does.
Figure 4-5. Interrupt Processing
NO
NO
NO
YES
NO
NO
YES
NO
YES
YES
FROM RESET
BREAK
I BIT SET?
IRQ
INTERRUPT
CGM
INTERRUPT
FETCH NEXT
INSTRUCTION
UNSTACK CPU REGISTERS
STACK CPU REGISTERS
SET I BIT
LOAD PC WITH INTERRUPT VECTOR
EXECUTE INSTRUCTION
YES
YES
I BIT SET?
INTERRUPT
YES
OTHER
INTERRUPTS
NO
SWI
INSTRUCTION
RTI
INSTRUCTION
?
?
?
?
?
?



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