XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 161

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

9.6.2 Reset
MC68HC908AZ60A — Rev 2.0
MOTOROLA
NOTE:
SWI Instruction
A software interrupt pushes PC onto the stack. A software interrupt does
not push PC – 1, as a hardware interrupt does.
All reset sources always have higher priority than interrupts and cannot
be arbitrated.
The SWI instruction is a non-maskable instruction that causes an
interrupt regardless of the state of the interrupt mask (I bit) in the
condition code register.
System Integration Module (SIM)
Figure 9-11
INT1
INT2
CLI
LDA
PSHH
PULH
RTI
PSHH
PULH
RTI
.
#$FF
Interrupt Recognition Example
INT1 INTERRUPT SERVICE ROUTINE
INT2 INTERRUPT SERVICE ROUTINE
System Integration Module (SIM)
Program Exception Control
Technical Data
BACKGROUND
ROUTINE
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