mc68hc05l25 Freescale Semiconductor, Inc, mc68hc05l25 Datasheet - Page 43

• Manufacturer Part Number: mc68hc05l25
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Y
INSTRUCTION
INSTRUCTION.
INSTRUCTION.
INSTRUCTION
FROM RESET
INTERRUPT?
INTERRUPT?
INTERRUPT?
INTERRUPT?
FETCH NEXT
TIME BASE
EXECUTE
N
N
N
N
N
N
SET?
SWI
I BIT
IRQ
IRQ
SPI
RTI
?
IS
?
Figure 6-1. Interrupt Processing Flowchart
N
MC68HC05L25 Data Sheet, Rev. 3.1
Y
Y
Y
Y
Y
Y
PC = PC+1
RESTORE REGISTERS
STACK PC, X, A, CC.
SWI: $1FFC:$1FFD
IRQ: $1FFA:$1FFB
KWI: $1FF8:$1FF9
SPII: $1FF2:$1FF3
EVI: $1FF4:$1FF5
TBI: $1FF0:$1FF1
LOAD PC FROM:
SET I BIT IN CCR.
FROM STACK
CC, A, X, PC.
External Interrupt (IRQ)
43