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| MC68HC05L28 Datasheet, PDF (106/156 Pages) Motorola, Inc – Flexible general-purpose microcomputer | |||
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10
From
RESET
Yes
Is I-bit set?
No
IRQ0 ,1,2
Yes
External interrupt?
No
Core timer
Yes
interrupt?
No
I2C
Yes
interrupt?
No
TIMER16
Yes
interrupt?
No
Fetch next
instruction
SWI
Yes
instruction
?
No
RTI
Yes
instruction
?
No
Execute
instruction
Clear IRQ0,1,2
Stack
PC, X, A, CC
Set I-bit
Load PC From:
SWI: $3FFC - $3FFD
IRQ0: $3FFA - $3FFB
IRQ1: $3FFA - $3FFB
IRQ2: $3FFA - $3FFB
CTimer: $3FF8 - $3FF9
I2C: $3FF6 - $3FF7
TIM16: $3FF4 - $3FF5
Restore registers
from stack:
CC, A, X, PC
MOTOROLA
10-4
Figure 10-1 Interrupt ï¬ow chart
RESETS AND INTERRUPTS
TPG
MC68HC05L28
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