MC68HC908JK3 MOTOROLA [Motorola, Inc], MC68HC908JK3 Datasheet - Page 85

• Manufacturer Part Number: MC68HC908JK3
• Description: MC68HC908JK1
• Manufacturer: MOTOROLA [Motorola, Inc]

7.6.1.2 SWI Instruction
7.6.2 Interrupt Status Registers
MC68H(R)C908JL3
MOTOROLA
Priority
Highest
Lowest
Reset
SWI Instruction
IRQ1 Pin
Timer Channel 0 Interrupt
Timer Channel 1 Interrupt
Timer Overflow Interrupt
Keyboard Interrupt
ADC Conversion Complete Interrupt
Note:
1. The I bit in the condition code register is a global mask for all interrupts sources except the SWI
NOTE:
instruction.
—
Rev. 1.0
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.
Source
Table 7-3. Interrupt Sources
Table 7-3
System Integration Module (SIM)
summarizes the interrupt sources and the interrupt
COCO
IRQF1
CH0F
CH1F
KEYF
Flag
TOF
—
—
IMASKK
IMASK1
Mask
CH0IE
CH1IE
TOIE
AIEN
—
—
1
System Integration Module (SIM)
Register
Flag
IF14
IF15
INT
IF1
IF3
IF4
IF5
—
—
Vector Address
Exception Control
$FFDE–$FFDF
$FFFC–$FFFD
$FFFE–$FFFF
$FFFA–$FFFB
$FFE0–$FFE1
$FFF6–$FFF7
$FFF4–$FFF5
$FFF2–$FFF3
Technical Data
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