20.2.6.1 Cortex-M3 Processor Resets

The Reset Controller drives various reset signals to the Cortex-M3 processor as follows:

1. M3_PORESET_M3_CLK_N
2. M3_PORESET_TCK_N
3. T_RESET_N
4. M3_SYS_RESET_N
5. M3_TRST_N

The source of the Cortex-M3 processor reset captured in the Table 21-52 register (defined in Table 20-4). The register captures the status of the resets so that once the Cortex-M3 processor comes out of reset, it can read this register and take further necessary action.

Cortex-M3 processor reset signal generation is explained in the following sections.