mc68hc908gp20 Freescale Semiconductor, Inc, mc68hc908gp20 Datasheet - Page 302

• Manufacturer Part Number: mc68hc908gp20
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

19.6.1.2 SWI Instruction
19.6.1.3 Interrupt Status Registers
Advance Information
302
NOTE:
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.
A software interrupt pushes PC onto the stack. A software interrupt does
not push PC – 1, as a hardware interrupt does.
The flags in the interrupt status registers identify maskable interrupt
sources.
status register flags that they set. The interrupt status registers can be
useful for debugging.
Highest
Priority
Lowest
Table 19-3
ADC conversion complete
SPI transmitter empty
Timebase module
Interrupt Source
SCI receive error
TIM1 channel 0
TIM1 channel 1
TIM2 channel 0
TIM2 channel 1
SPI receiver full
SWI instruction
Table 19-3. Interrupt Sources
TIM1 overflow
TIM2 overflow
summarizes the interrupt sources and the interrupt
SCI transmit
SCI receive
Keyboard
IRQ pin
Reset
PLL
MC68HC908GP20
Interrupt Status
Freescale Semiconductor
Register Flag
I10
I11
I12
I13
I14
I15
I16
—
—
I1
I2
I3
I4
I5
I6
I7
I8
I9
—
Rev 2.1