C10.70 ETM Peripheral Identification Register 4

The TRCPIDR4 characteristics are:

Provides information to identify a trace component.
Usage constraints
  • Only bits[7:0] are valid.
  • Accessible only from the external debug interface, offset 0xFD0.
Available in all implementations.

TRCPIDR4 is a 32-bit RO management register.

See C10.1 ETM register summary.

Figure C10-67 TRCPIDR4 bit assignments
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Reserved, res0.

Size, [7:4]
0x0Size of the component. Log2 the number of 4KB pages from the start of the component to the end of the component ID registers.
DES_2, [3:0]
0x4ARM Limited. This is bits[3:0] of the JEP106 continuation code.
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