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c13 registers

Table 4.143 shows the 32-bit wide system registers you can access when the processor is in AArch32 state and the value of CRn is c13.

Table 4.143. c13 register summary
CRn Op1 CRm Op2 Name Reset Description
c13 0 c0 0 FCSEIDR 0x00000000

FCSE Process ID Register

1 CONTEXTIDR UNK Context ID Register[a]
2 TPIDRURW UNK User Read/Write Thread ID Register[a]
3 TPIDRURO UNK

User Read-Only Thread ID Register[a]

4 TPIDRPRW UNK EL1 only Thread ID Register[a]
4 c0 2 HTPIDR UNK

Hyp Software Thread ID Register[a]

[a] See the ARM® Architecture Reference Manual ARMv8, for ARMv8-A architecture profile.


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