ARM Cortex-A35 User Manual

C10.6 Performance Monitors Control Register, EL0
The PMCR_EL0 characteristics are:
Purpose
Provides details of the Performance Monitors implementation, including the number of counters
implemented, and configures and controls the counters.
Usage constraints
This register is accessible as follows:
EL0 EL1
(NS)
EL1
(S)
EL2
EL3
(SCR.NS = 1)
EL3
(SCR.NS = 0)
RW RW RW RW RW RW
This register is accessible at EL0 when PMUSERENR_EL0.EN is set to 1.
Configurations
PMCR_EL0 is architecturally mapped to the AArch32 PMCR register. See C10.2 Performance
Monitors Control Register on page C10-692.
PMCR[6:0] is architecturally mapped to external PMCR_EL0 register.
Attributes
PMCR_EL0 is a 32-bit register.
E
31 24 23 16 15 11 10 6 5 4 3 2 1 0
IMP IDCODE N RES0 DP X D C PLC
7
Figure C10-4 PMCR_EL0 bit assignments
IMP, [31:24]
Implementer code:
0x41 Arm.
This is a read-only field.
IDCODE, [23:16]
Identification code:
0x0A Cortex‑A35.
This is a read-only field.
N, [15:11]
Number of event counters.
0b00110 Six counters.
[10:7]
Reserved, RES0.
LC, [6]
Long cycle count enable. Determines which PMCCNTR_EL0 bit generates an overflow
recorded in PMOVSR[31]. The possible values are:
C10 PMU registers
C10.6 Performance Monitors Control Register, EL0
100236_0100_00_en Copyright © 2015–2017, 2019 Arm Limited or its affiliates. All rights
reserved.
C10-704
Non-Confidential

ARM Cortex-A35 Specifications

General

Brand	ARM
Model	Cortex-A35
Category	Computer Hardware
Language	English