PMDEVARCH Performance Monitors Device Architecture register PMU when FEAT_PMUv3_EXT is implemented PMU 0xFBC When FEAT_DoPD is implemented and !IsCorePowered() ERROR RO Identifies the programmers' model architecture of the Performance Monitor component. PMU If FEAT_DoPD is implemented, this register is in the Core power domain. If FEAT_DoPD is not implemented, this register is in the Debug power domain. PMDEVARCH is a 32-bit register. ARCHITECT 31 21 31:21 Defines the architect of the component. For Performance Monitors, this is Arm Limited. Bits [31:28] are the JEP106 continuation code, 0b0100. Bits [27:21] are the JEP106 identification code, 0b0111011. Reads as 0b01000111011. RO PRESENT 20 20 20 DEVARCH present. Indicates that the PMDEVARCH register is present. Reads as 0b1. RO REVISION 19 16 19:16 Defines the architecture revision. For architectures defined by Arm this is the minor revision. For Performance Monitors, the revision defined by Armv8 is 0x0. All other values are reserved. Reads as 0b0000. RO ARCHVER 15 12 3:0 Architecture Version. Defines the architecture version of the component. All other values are reserved. PMDEVARCH.ARCHVER and PMDEVARCH.ARCHPART are also defined as a single field, PMDEVARCH.ARCHID, so that PMDEVARCH.ARCHVER is PMDEVARCH.ARCHID[15:12]. 0b0010 Performance Monitors Extension version 3, PMUv3. RO When UInt(PMU.PMDEVARCH.ARCHPART) == 0xA16 or UInt(PMU.PMDEVARCH.ARCHPART) == 0xA26 ARCHVER 15 12 3:0 Architecture Version. Defines the architecture version of the component. All other values are reserved. PMDEVARCH.ARCHVER and PMDEVARCH.ARCHPART are also defined as a single field, PMDEVARCH.ARCHID, so that PMDEVARCH.ARCHVER is PMDEVARCH.ARCHID[15:12]. 0b0000 PC Sample-based Profiling version 2, FEAT_PCSRv8p2. Otherwise ARCHPART 11 0 11:0 Architecture Part. Defines the architecture of the component. FEAT_PMUv3_EXT32 implements the functionality described by the values 0xA10 and 0xA16. FEAT_PMUv3_EXT64 implements the functionality described by the values 0xA20 and 0xA26. The values 0xA10 and 0xA20 indicate that FEAT_PCSRv8p2 is implemented but the Performance Monitors Extension is not implemented. PMDEVARCH.ARCHVER and PMDEVARCH.ARCHPART are also defined as a single field, PMDEVARCH.ARCHID, so that PMDEVARCH.ARCHPART is PMDEVARCH.ARCHID[11:0]. 0xA10 PC Sample-based Profiling, including the 32-bit programmers' model extension. 0xA16 Armv8-A PE performance monitors, including the 32-bit programmers' model extension. 0xA20 PC Sample-based Profiling, including the 64-bit programmers' model extension. 0xA26 Armv8-A PE performance monitors, including the 64-bit programmers' model extension. RO Accessible at offset 0xFBC from PMU 2026-03-26 20:27:25 2026-03_rel