SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The DSP uses the same reset sources than those mapped to the DSP C66x CorePac; i.e. DSP C66x CorePac reset inputs will be pinned out as DSP system reset inputs.
The Table 5-4 summarizes the DSP hardware reset inputs and their functional descriptions.
DSP1 reset input | DSP1 reset "done" output to PRCM | Description |
---|---|---|
DSP1_PWR_RST | - | This is power-on reset signal used inside DSP1 to reset mainly the emulation logic. It resets the entire DSP1 logic. |
DSP1_RST | - | Reset signal used to reset all logic inside DSP1 except Emulation logic. |
DSP1_LRST | - | Reset applied ONLY to the C66x CPU inside DSP1 |
- | DSP1_LRST_DONE | Indicates completion of the DSP1 local C66x CPU reset to device PRCM |
DSP2 reset input | DSP2 reset "done" output to PRCM | Description |
DSP2_PWR_RST | - | This is power-on reset signal used inside DSP2 to reset mainly the emulation logic. It resets the entire DSP2 logic. |
DSP2_RST | - | Reset signal used to reset all logic inside DSP2 except Emulation logic. |
DSP2_LRST | - | Reset applied ONLY to the C66x CPU inside DSP2 |
- | DSP2_LRST_DONE | Indicates completion of the DSP2 local C66x CPU reset to device PRCM |
See also the Section 5.2 for more information on the PRCM reset sources to DSP reset inputs connectivity.
Refer to the DSP1 Subsystem Power-on Reset Sequence and the DSP2 Subsystem Power-on Reset Sequence in the chapter, Power, Reset and Clock Manamgement for more details on the DSP1 and DSP2 power-on reset sequence, respectively.
In the case of DSP1 / DSP2 recovery from the “Powerdown-grid off”, a full power-on-reset sequence is required before re-booting and resuming functional operation.