CM68HC05C4ACFB Motorola / Freescale Semiconductor, CM68HC05C4ACFB Datasheet - Page 38

• Manufacturer Part Number: CM68HC05C4ACFB
• Description: Microcontroller
• Manufacturer: Motorola / Freescale Semiconductor

Interrupts
General Release Specification
38
RESTORE REGISTERS
FROM STACK:
CCR, A, X, PC
Y
Y
Figure 4-1. Interrupt Flowchart
INSTRUCTION
INSTRUCTION
IN CCR SET?
FETCH NEXT
INSTRUCTION
INSTRUCTION
INTERRUPT
INTERRUPT
EXTERNAL
INTERRUPT
INTERNAL
INTERNAL
INTERRUPT
EXECUTE
INTERNAL
RESET
FROM
TIMER
I BIT
IRQ
SCI
SWI
RTI
?
SPI
?
?
?
?
?
N
N
N
N
N
N
N
Interrupts
Y
Y
Y
Y
Y
REQUEST LATCH
CLEAR IRQ
TIMER: $1FF8-$1FF9
SWI: $1FFC-$1FFD
IRQ: $1FFA-$1FFB
SCI: $1FF6-$1FF7
LOAD PC FROM:
PC, X, A, CCR
CC REGISTER
SET I BIT IN
STACK
MC68HC05C4A
MOTOROLA
—
Rev. 4.0