MC68HC908GZ16 Datasheet, PDF (181/314 Pages) Motorola, Inc – Microcontrollers

Interrupts
• Bus Off bit (BOFFIF) — BOFFIF is set when the transmit error counter has exceeded 255 and
MSCAN08 has gone to bus off state. The bus off interrupt enable bit, BOFFIE, enables BOFFIF to
generate MSCAN08 error CPU interrupt requests. BOFFIF is in MSCAN08 receiver flag register.
BOFFIE is in MSCAN08 receiver interrupt enable register.
14.3.3 Interrupt Status Registers
The flags in the interrupt status registers identify maskable interrupt sources. Table 14-2 summarizes the
interrupt sources and the interrupt status register flags that they set. The interrupt status registers can be
useful for debugging.
Table 14-2. Interrupt Source Flags
Interrupt
Source
Reset
SWI instruction
IRQ pin
CGM change of lock
TIM1 channel 0
TIM1 channel 1
TIM1 overflow
TIM2 channel 0
TIM2 channel 1
TIM2 overflow
SPI receive
SPI transmit
SCI error
SCI receive
SCI transmit
Keyboard
ADC conversion complete
Timebase
MSCAN08 wakeup
MSCAN08 error
MSCAN08 receive
MSCAN08 transmit
Interrupt Status
Register Flag
—
—
IF1
IF2
IF3
IF4
IF5
IF6
IF7
IF8
IF9
IF10
IF11
IF12
IF13
IF14
IF15
IF16
IF17
IF18
IF19
IF20
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 1
Freescale Semiconductor
181