MCMC68HC05L16 Freescale Semiconductor, Inc, MCMC68HC05L16 Datasheet - Page 42

• Manufacturer Part Number: MCMC68HC05L16
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Resets and Interrupts
42
1. KWI, timer 1, timer 2, SSPI, and TBI
RESTORE REGISTERS
FROM STACK:
CCR, A, X, PC
MC68HC05L16 • MC68HC705L16 Data Sheet, Rev. 4.1
Y
Y
Figure 4-4. Interrupt Flowchart
INSTRUCTION
INSTRUCTION
INSTRUCTION
INSTRUCTION
FROM RESET
INTERRUPT
FETCH NEXT
INTERRUPT
EXTERNAL
EXECUTE
INTERNAL
IN CCR
SET ?
I BIT
SWI
IRQ
RTI
?
?
N
N
N
N
N
(1)
Y
Y
Y
CLEAR IRQ
REQUEST
LATCH
LOAD PC FROM
SWI:
IRQx:
KWI:
TIMER 1:
TIMER 2:
SSPI:
TBI:
CC REGISTER
PC, X, A, CCR
SET I BIT IN
STACK
$FFFC–$FFFD
$FFFA–$FFFB
$FFF8–$FFF9
$FFF2–$FFF3
$FFF0–$FFF1
$FFF6–$FFF7
$FFF4–$FFF5
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