MC68HC908GP32 Datasheet, PDF (294/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
System Integration Module (SIM)
19.6.1.2 SWI Instruction
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.
NOTE: A software interrupt pushes PC onto the stack. A software interrupt does
not push PC – 1, as a hardware interrupt does.
19.6.1.3 Interrupt Status Registers
The flags in the interrupt status registers identify maskable interrupt
sources. Table 19-3 summarizes the interrupt sources and the interrupt
status register flags that they set. The interrupt status registers can be
useful for debugging.
Priority
Highest
Lowest
Table 19-3. Interrupt Sources
Interrupt Source
Reset
SWI instruction
IRQ pin
PLL
TIM1 channel 0
TIM1 channel 1
TIM1 overflow
TIM2 channel 0
TIM2 channel 1
TIM2 overflow
SPI receiver full
SPI transmitter empty
SCI receive error
SCI receive
SCI transmit
Keyboard
ADC conversion complete
Timebase module
Interrupt Status
Register Flag
—
—
IF1
IF2
IF3
IF4
IF5
IF6
IF7
IF8
IF9
IF10
IF11
IF12
IF13
IF14
IF15
IF16
Technical Data
292
MC68HC908GP32•MC68HC08GP32 — Rev. 6
System Integration Module (SIM)
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