MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 90

• Manufacturer Part Number: MC68HC908QY2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

System Integration Module (SIM)
7.7.2 Interrupt Status Registers
90
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
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.
Priority
Highest
Lowest
1. The I bit in the condition code register is a global mask for all interrupt sources except the
SWI instruction.
Reset
SWI instruction
IRQ pin
Timer channel 0 interrupt
Timer channel 1 interrupt
Timer overflow interrupt
Keyboard interrupt
ADC conversion
complete interrupt
Table 7-3
System Integration Module (SIM)
Source
summarizes the interrupt sources and the interrupt
Table 7-3. Interrupt Sources
IRQF1 IMASK1
COCO
CH0F
CH1F
KEYF
Flag
TOF
—
—
IMASKK
Mask
CH0IE
CH1IE
TOIE
AIEN
—
—
(1)
Register
Flag
IF15
IF14
INT
IF1
IF3
IF4
IF5
—
—
$FFDE–$FFDF
$FFFC–$FFFD
$FFFE–$FFFF
$FFFA–$FFFB
$FFE0–$FFE1
$FFF6–$FFF7
$FFF4–$FFF5
$FFF2–$FFF3
Address
MOTOROLA
Vector