mc68hc705p6a Freescale Semiconductor, Inc, mc68hc705p6a Datasheet - Page 34

• Manufacturer Part Number: mc68hc705p6a
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Interrupts
34
Y
EXECUTE INSTRUCTION
INSTRUCTION?
INSTRUCTION?
INSTRUCTION
FROM RESET
INTERRUPT?
FETCH NEXT
INTERRUPT?
IS I BIT
SET?
TIMER
N
N
N
N
IRQ
SWI
RTI
MC68HC705P6A Advance Information Data Sheet, Rev. 2.1
N
Figure 5-1. Interrupt Processing Flowchart
Y
Y
Y
Y
CLEAR IRQ
REQUEST
LATCH
TIMER: $1FF8-$1FF9
RESTORE RESISTERS
SWI: $1FFC, $1FFD
IRQ: $1FFA-$1FFB
LOAD PC FROM:
I BIT IN CCR
PC, X, A, CC
FROM STACK
CC, A, X, PC
STACK
SET
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