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HC705E5GRS/D Datasheet(PDF) 37 Page - NXP Semiconductors

Part # HC705E5GRS/D
Description  General Release Specification
PDF  148 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

HC705E5GRS/D Datasheet(HTML) 37 Page - NXP Semiconductors

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Interrupts
Timer Interrupt
MC68HC705E5 — Rev. 1.0
General Release Specification
Interrupts
Figure 4-1. Interrupt Processing Flowchart
FROM
RESET
EXTERNAL
INTERRUPT?
IRQ
INTERNAL
INTERRUPT?
TIMER
I BIT
SET?
IS
LOAD PC FROM:
SWI:
$1FFC–$1FFD
IRQ:
$1FFA–$1FFB
TIMER: $1FF8–$1FF9
CPI:
$1FF6–$1FF7
SSI:
$1FF4–$1FF5
M BUS: $1FF2–$1FF3
SET
I BIT.
STACK
PC, X, A, CC
CLEAR IRQ
REQUEST
LATCH.
RESTORE RESISTERS
FROM STACK
CC, A, X, PC.
FETCH NEXT
INSTRUCTION.
EXECUTE
INSTRUCTION.
Y
Y
Y
N
N
N
INTERNAL
INTERRUPT?
CPI
Y
N
INSTRUCTION
?
SWI
Y
N
N
INSTRUCTION
?
RTI
Y
N
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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