SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
One of the control module functions is to control the multiplexing of certain signals from the device internal modules. Using the correct pad configuration settings, the control module maps these observability lines to the device boundary and a set of user selected internal module signals are available to be observed on the device pads. In addition, there are also two lines intended for observation of any of the device interrupt requests connected to the inputs of the IRQ_CROSSBAR module and two lines intended for observation of any of the DMA requests connected to the inputs of the DMA_CROSSBAR module. For more information, see Section 18.4.6.4, IRQ_CROSSBAR Module Functional Description and Section 18.4.6.5, DMA_CROSSBAR Module Functional Description.
An external non-maskable interrupt signal is also present. Using the appropriate registers the NMI can be mapped to different device cores. For more information, see Section 18.4.6.9, NMI Mapping to respective cores.
Figure 18-2 is an overview of the control module environment.
Table 18-1 shows the NMI input signal and observability outputs used to observe different signals of the device modules.
Signal | I/O(1) | Description |
---|---|---|
obs[31:0] | O | 32 internal hardware observability signals |
nmin_dsp | I | External non-maskable interrupt signal |
obs_irq1 | O | Two signals intended for IRQ observation |
obs_irq2 | O | |
obs_dmarq1 | O | Two signals intended for DREQ observation |
obs_dmarq2 | O |