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The SWI instruction of Crack Freescale MC68HC908RK2 Flash Memory 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. All reset sources always have equal and highest priority and cannot be arbitrated.

The break module can stop normal program flow at a software- programmable break point by asserting its break interrupt output. See Section 22. 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 especially in the process of Clone Freescale MC68HC908GZ16 Microcontroller Program.

The SIM controls whether status flags contained in other modules can be cleared during IC code extraction. The user can select whether flags are protected from being cleared by properly initializing the break clear flag enable bit (BCFE) in the SIM break flag control register (SBFCR).

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Protecting flags in break mode ensures that set flags will not be cleared while in break mode. This protection allows registers to be freely read and written during break mode without losing status flag information.

Setting the BCFE bit enables the clearing mechanisms. Once cleared in break mode, a flag remains cleared even when break mode is exited. Status flags with a two-step clearing mechanism — for example, a read of one register followed by the read or write of another — are protected only after Unlock MC68HC08GP32 Chip Flash Heximal, even when the first step is accomplished prior to entering break mode. Upon leaving break mode, execution of the second step will clear the flag as normal.