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Reset Status Registers, RST_STAT0 and RST_STAT1

The read-only Reset Status Registers are RST_STAT0 and RST_STAT1.

RST_STAT0 Returns the reset status of the Cortex®‑A15 cluster.
RST_STAT1 Returns the reset status of the Cortex‑A7 cluster.

Each read-only RST_STATx register can determine the resets that the reset controller is currently asserting.

Table 3-32 RST_STATx Register bit assignments

Bits Name Type Description
[8] CLUSTER_RESET RO Reads as 1 if the cluster is held in a cluster reset. Otherwise, it reads as 0.
[7:4] CPU_PORESET RO Each bit n reads as 1 if core n is held in core power-on reset. Otherwise, it reads as 0.
[3:0] CPU_RESET RO Each bit n reads as 1 if core n is held in core reset. Otherwise, it reads as 0.

Note:

It is not possible to read whether a system reset or a power-on reset is active because both core clusters are fully reset in both of these cases.
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