MC68HC908KX8 Datasheet, PDF (96/310 Pages) Motorola, Inc – Microcontrollers

System Integration Module (SIM)
6.8.2 Interrupt Status Registers
The flags in the interrupt status registers identify maskable interrupt
sources. Table 6-2 summarizes the interrupt sources and the interrupt
status register flags that they set. The interrupt status registers can be
useful for debugging.
Table 6-2. Interrupt Sources
Source
Flag
Mask⁽¹⁾
INT
Register
Flag
Priority⁽²⁾
Vector
Address
SWI instruction
—
—
—
0
$FFFC–$FFFD
IRQ1 pin
IRQF1 IMASK1
IF1
1
$FFFA–$FFFB
ICG clock monitor
CMF
CMIE
IF2
2
$FFF8–$FFF9
TIM channel 0
CH0F
CH0IE
IF3
3
$FFF6–$FFF7
TIM channel 1
CH1F
CH1IE
IF4
4
$FFF4–$FFF5
TIM overflow
TOF
TOIE
IF5
5
$FFF2–$FFF3
SCI receiver overrun error
OR
ORIE
SCI receiver noise error
SCI receiver framing error
NF
NEIE
IF11
FE
FEIE
6
$FFE6–$FFE7
SCI receiver parity error
PE
PEIE
SCI receiver full
SCI receiver idle
SCRF
IDLE
SCRIE
ILIE
IF12
7
$FFE4–$FFE5
SCI transmitter empty
SCI transmission complete
SCTE
TC
SCTIE
TCIE
IF13
8
$FFE2–$FFE3
Keyboard pins
KEYF IMASKK
IF14
9
$FFE0–$FFE1
ADC conversion complete
—
AIEN
IF15
10
$FFDE–$FFDF
Timebase module
TBIE
TBF
IF16
11
$FFDC–$FFDD
1. The I bit in the condition code register is a global mask for all interrupt sources except the SWI instruction.
2. 0 = highest priority
Technical Data
96
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
System Integration Module (SIM)
MOTOROLA