DETECTING THE RESET SOURCE ON THE TMS320X240 DSP CONTROLLER

The TMS320x240 ('x240) DSP Controller allows three internal and two external methods to generate device resets. The 'x240 DSP Controller provides the capability to detect the source of a reset through the use of the System Status Register (SYSSR at address 701Ah). This register contains a status bit for four of the five possible reset sources. The fifth source, the external RS pin, does not have a status bit, and is identifiable when the other four bits are cleared. These bits are described in this document.

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