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Overview
10.1 Overview
There are different types of reset in the TMS320DM643x DMP. The types of reset differ by how they are initiated and/or by their effect on the chip. Each type is briefly described in Table
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| Table |
Type | Initiator | Effect |
POR | POR pin low | Total reset of the chip (cold reset). Resets all |
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| modules including memory, emulation logic. The |
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| |
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| during power ramp of the device. Device boot and |
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| configuration pins are latched. |
Warm Reset | RESET pin low | Resets all modules including memory, except |
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| emulation logic. Emulator stays alive during warm |
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| reset. Device boot and configuration pins are |
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| latched. |
Max Reset | DSP emulator or Watchdog Timer (Timer 2). |
Same effect as warm reset, except the device boot and configuration pins are not
Module/Peripheral Local | DSP or external host software | Independently resets a specific module. Module |
Reset |
| reset is intended as a debug tool, not necessarily |
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| as a tool to use in production. |
DSP Local Reset | External host software | Resets the DSP CPU. DSP internal memories |
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| (L1P, L1D, and L2) are not reset. |
10.2 Reset Pins
There are two
10.3 Device Configurations at Reset
Upon POR and warm reset, the DM6437 DMP latches the values from the boot and configuration pins. Refer to
92 | Reset |