MC68HC908GZ8 Datasheet, PDF (61/344 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Resets and Interrupts
Interrupts
requests. TERRIF is in MSCAN08 receiver flag register. TERRIE is in
MSCAN08 receiver interrupt enable register.
• 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.
4.3.3 Interrupt Status Registers
The flags in the interrupt status registers identify maskable interrupt sources. Table
4-2 summarizes the interrupt sources and the interrupt status register flags that
they set. The interrupt status registers can be useful for debugging.
Table 4-2. 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
MC68HC908GZ8
MOTOROLA
Resets and Interrupts
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Data Sheet
61