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MC9RS08KA2 Datasheet, PDF (44/132 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Chapter 5 Resets, Interrupts, and General System Control
5.8.6 System Interrupt Pending Register (SIP1)
This high page register contains status of the pending interrupt from the modules.
7
6
5
4
3
2
1
0
R
0
0
0
KBI
ACMP
MTIM
RTI
LVD
W
Reset:
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Field
4
KBI
3
ACMP
2
MTIM
1
RTI
0
LVD
Figure 5-7. System Interrupt Pending Register (SIP1)
Table 5-9. SIP1 Register Field Descriptions
Description
Keyboard Interrupt Pending â This read-only bit indicates there is a pending interrupt from the KBI module.
Clearing the KBF ï¬ag of the KBISC register clears this bit. Reset also clears this bit.
0 There is no pending KBI interrupt; i.e., KBF ï¬ag and/or KBIE bit is cleared.
1 There is a pending KBI interrupt; i.e., KBF ï¬ag and KBIE bit are set.
Analog Comparator Interrupt Pending â This read-only bit indicates there is a pending interrupt from the
ACMP module. Clearing the ACF ï¬ag of the ACMPSC register clears this bit. Reset also clears this bit.
0 There is no pending ACMP interrupt; i.e., ACF ï¬ag and/or ACIE bit is cleared.
1 There is a pending a ACMP interrupt; i.e., ACF ï¬ag and ACIE bit are set.
Modulo Timer Interrupt Pending â This read-only bit indicates there is a pending interrupt from the MTIM
module. Clearing the TOF ï¬ag of the MTIMSC register clears this bit. Reset also clears this bit.
0 There is no pending MTIM interrupt; i.e., TOF ï¬ag and/or TOIE bit is cleared.
1 There is a pending MTIM interrupt; i.e., TOF ï¬ag and TOIE bit are set.
Real-Time Interrupt Pending â This read-only bit indicates there is a pending interrupt from the RTI. Clearing
the RTIF ï¬ag of the SRTISC register clears this bit. Reset also clears this bit.
0 There is no pending RTI interrupt; i.e., RTIF ï¬ag and/or RTIE bit is cleared.
1 There is a pending RTI interrupt; i.e., RTIF ï¬ag and RTIE bit are set.
Low-Voltage Detect Interrupt Pending â This read-only bit indicates there is a pending interrupt from the low
voltage detect module. Clearing the LVDF ï¬ag of the SPMSC1 register clears this bit. Reset also clears this bit.
0 There is no pending LVD interrupt; i.e., LVDF ï¬ag and/or LVDE bit is cleared.
1 There is a pending LVD interrupt; i.e., LVDF ï¬ag, LVDIE, and LVDE bits are set.
MC9RS08KA2 Series Data Sheet, Rev. 2
44
Freescale Semiconductor
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