MC68HC705C4ACB MOTOROLA [Motorola, Inc], MC68HC705C4ACB Datasheet - Page 62
MC68HC705C4ACB
Manufacturer Part Number
MC68HC705C4ACB
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC705C4ACB.pdf
(210 pages)
- Current page: 62 of 210
- Download datasheet (2Mb)
Interrupts
Technical Data
62
YES
Figure 4-5. Reset and Interrupt Processing Flowchart
CCR REGISTER
INSTRUCTION?
INSTRUCTION?
INSTRUCTION
INTERRUPT?
INTERRUPT?
FETCH NEXT
INTERRUPT?
INTERRUPT?
EXTERNAL
I BIT IN
RESET
TIMER
FROM
SET?
IRQ
SCI
SPI
SWI
RTI
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
RESTORE REGISTERS FROM STACK:
CLEAR IRQ REQUEST LATCH
Interrupts
EXECUTE INSTRUCTION
1. STACK PC, X, A, CCR
2. SET I BIT
3. LOAD PC WITH VECTOR
TIMER:
CCR, A, X, PC
SWI:
IRQ:
SCI:
SPI:
$1FFC–$1FFD
$1FFA–$1FFB
$1FF8–$1FF9
$1FF6–$1FF7
$1FF4–$1FF5
MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
MOTOROLA
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