MC68HC908JB16_13 Datasheet, PDF (114/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

System Integration Module (SIM)
8.6.2.2 Interrupt Status Register 2
Address: $FE05
Bit 7
6
5
4
3
2
1
Bit 0
Read: IF14
IF13
IF12
IF11
IF10
IF9
IF8
IF7
Write: R
R
R
R
R
R
R
R
Reset: 0
0
0
0
0
0
0
0
R = Reserved
Figure 8-13. Interrupt Status Register 2 (INT2)
IF14–IF7 — Interrupt Flags 14–7
These flags indicate the presence of interrupt requests from the
sources shown in Table 8-4.
1 = Interrupt request present
0 = No interrupt request present
8.6.3 Reset
All reset sources always have equal and highest priority and cannot be
arbitrated.
8.6.4 Break Interrupts
The break module can stop normal program flow at a software-
programmable break point by asserting its break interrupt output. (See
Section 19. Break Module (BRK).) The SIM puts the CPU into the
break state by forcing it to the SWI vector location. Refer to the break
interrupt subsection of each module to see how each module is affected
by the break state.
8.6.5 Status Flag Protection in Break Mode
The SIM controls whether status flags contained in other modules can
be cleared during break mode. The user can select whether flags are
protected from being cleared by properly initializing the break clear flag
enable bit (BCFE) in the break flag control register (BFCR).
Technical Data
114
System Integration Module (SIM)
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor