PPI Status Register
Characteristics and bit assignments of the ICPPISR.
Enables a Cortex®‑A9 processor to access the status of the inputs on the distributor:
A Cortex‑A9 processor can only read the status of its own PPI and therefore cannot read the status of PPI for other Cortex‑A9 processors.
|Configurations||Available in all Cortex‑A9 multiprocessor configurations.|
|Attributes||See the register summary in Distributor register summary.|
The following figure shows the ICPPISR bit assignments.
Figure 3-5 ICPPISR bit assignments
The following table shows the ICPPISR bit assignments.
Table 3-6 ICPPISR bit assignments
Returns the status of the PPI(4:0) inputs on the distributor:
PPI and PPI are active LOW
PPI, PPI, and PPI are active HIGH.
NoteThese bits return the actual status of the PPI(4:0) signals. The ICDISPRn and ICDICPRn registers can also provide the PPI(4:0) status but because you can write to these registers then they might not contain the actual status of the PPI(4:0) signals.