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HC705J2 Datasheet(PDF) 51 Page - Motorola, Inc

Part # HC705J2
Description  M68HC05 FAMILY OF 8 BIT MICROCONTROLLER UNITS
PDF  78 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

HC705J2 Datasheet(HTML) 51 Page - Motorola, Inc

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MC68HC705J2
RESETS AND INTERRUPTS
MOTOROLA
5-5
EXTERNAL
INTERRUPT
?
TIMER
INTERRUPT
?
YES
NO
INTERRUPT
MASK SET
?
YES
NO
YES
NO
CLEAR IRQ
REQUEST
LATCH.
STACK PCL, PCH, X, A, CCR
SET INTERRUPT MASK.
LOAD PC WITH VECTOR:
MC68HC705J2 NATIVE MOD
TIMER: $0FF8, $0FF9
EXTERNAL: $0FFA, $0FFB
SOFTWARE: $0FFC, $0FFD
MC68HC05J1 EMULATION M
TIMER: $07F8, $07F9
EXTERNAL: $07FA, $07FB
SOFTWARE: $07FC, $07FD
YES
NO
RTI
INSTRUCTION
?
RESTORE REGISTERS
FROM STACK
CCR, A, X, PCH, PCL
FETCH NEXT
INSTRUCTION.
EXECUTE
INSTRUCTION.
YES
NO
SWI
INSTRUCTION
?
FROM
RESET
Figure 5-3. Interrupt Flowchart



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