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# PMINTENCLR, Performance Monitors Interrupt Enable Clear register

The PMINTENCLR characteristics are:

## Purpose

Disables the generation of interrupt requests on overflows from the Cycle Count Register, PMCCNTR, and the event counters PMEVCNTR<n>. Reading the register shows which overflow interrupt requests are enabled.

PMINTENCLR is used in conjunction with the PMINTENSET register.

## Configuration

AArch32 System register PMINTENCLR bits [31:0] are architecturally mapped to AArch64 System register PMINTENCLR_EL1[31:0] .

AArch32 System register PMINTENCLR bits [31:0] are architecturally mapped to External register PMINTENCLR_EL1[31:0] .

This register is in the Warm reset domain. On a Warm or Cold reset RW fields in this register reset to architecturally UNKNOWN values.

## Attributes

PMINTENCLR is a 32-bit register.

## Field descriptions

The PMINTENCLR bit assignments are:

31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
C | P<n>, bit [n]

#### C, bit [31]

PMCCNTR overflow interrupt request disable bit. Possible values are:

C | Meaning
--- | ---
0b0 | When read, means the cycle counter overflow interrupt request is disabled. When written, has no effect.
0b1 | When read, means the cycle counter overflow interrupt request is enabled. When written, disables the cycle count overflow interrupt request.

On a Warm reset, this field resets to an architecturally UNKNOWN value.

#### P<n>, bit [n], for n = 0 to 30

Event counter overflow interrupt request disable bit for PMEVCNTR<n>.

If N is less than 31, then bits [30:N] are RAZ/WI. When EL2 is implemented and enabled in the current Security state, in EL1, N is the value in MDCR_EL2.HPMN if EL2 is using AArch64, or in HDCR.HPMN if EL2 is using AArch32. Otherwise, N is the value in PMCR.N.

P<n> | Meaning
--- | ---
0b0 | When read, means that the PMEVCNTR<n> event counter interrupt request is disabled. When written, has no effect.
0b1 | When read, means that the PMEVCNTR<n> event counter interrupt request is enabled. When written, disables the PMEVCNTR<n> interrupt request.

On a Warm reset, this field resets to an architecturally UNKNOWN value.

## Accessing the PMINTENCLR

Accesses to this register use the following encodings:

#### MRC{<c>}{<q>} <coproc>, {#}<opc1>, <Rt>, <CRn>, <CRm>{, {#}<opc2>}

coproc | opc1 | CRn | CRm | opc2
--- | --- | --- | --- | ---
0b1111 | 0b000 | 0b1001 | 0b1110 | 0b010

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && !ELUsingAArch32(EL2) && HSTR_EL2.T9 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HSTR.T9 == '1' then AArch32.TakeHypTrapException(0x03); elsif EL2Enabled() && !ELUsingAArch32(EL2) && MDCR_EL2.TPM == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HDCR.TPM == '1' then AArch32.TakeHypTrapException(0x03); elsif HaveEL(EL3) && !ELUsingAArch32(EL3) && MDCR_EL3.TPM == '1' then AArch64.AArch32SystemAccessTrap(EL3, 0x03); else return PMINTENCLR; elsif PSTATE.EL == EL2 then if HaveEL(EL3) && !ELUsingAArch32(EL3) && MDCR_EL3.TPM == '1' then AArch64.AArch32SystemAccessTrap(EL3, 0x03); else return PMINTENCLR; elsif PSTATE.EL == EL3 then return PMINTENCLR;

#### MCR{<c>}{<q>} <coproc>, {#}<opc1>, <Rt>, <CRn>, <CRm>{, {#}<opc2>}

coproc | opc1 | CRn | CRm | opc2
--- | --- | --- | --- | ---
0b1111 | 0b000 | 0b1001 | 0b1110 | 0b010

if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && !ELUsingAArch32(EL2) && HSTR_EL2.T9 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HSTR.T9 == '1' then AArch32.TakeHypTrapException(0x03); elsif EL2Enabled() && !ELUsingAArch32(EL2) && MDCR_EL2.TPM == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HDCR.TPM == '1' then AArch32.TakeHypTrapException(0x03); elsif HaveEL(EL3) && !ELUsingAArch32(EL3) && MDCR_EL3.TPM == '1' then AArch64.AArch32SystemAccessTrap(EL3, 0x03); else PMINTENCLR = R[t]; elsif PSTATE.EL == EL2 then if HaveEL(EL3) && !ELUsingAArch32(EL3) && MDCR_EL3.TPM == '1' then AArch64.AArch32SystemAccessTrap(EL3, 0x03); else PMINTENCLR = R[t]; elsif PSTATE.EL == EL3 then PMINTENCLR = R[t];

AArch32 Registers | AArch64 Registers | AArch32 Instructions | AArch64 Instructions | Index by Encoding | External Registers | External Registers by Offset | Registers by Functional Group | Proprietary Notice

27/03/2019 21:59; e5e4db499bf9867a4b93324c4dbac985d3da9376

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