The CNTID characteristics are:
Indicates whether counter scaling is implemented.
The power domain of CNTID is IMPLEMENTATION DEFINED.
This register is present only when ARMv8.4-CNTSC is implemented. Otherwise, direct accesses to CNTID are RES0.
CNTID is a 32-bit register.
The CNTID 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 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | CNTSC |
Reserved, RES0.
Indicates whether Counter Scaling is implemented
CNTSC | Meaning |
---|---|
0b0000 |
Counter scaling is not implemented. |
0b0001 |
Counter scaling is implemented. |
All other values are reserved.
In a system that supports Secure and Non-secure memory maps, the CNTControlBase frame, that includes this register, is implemented only in the Secure memory map.
Component | Frame | Offset | Instance |
---|---|---|---|
Timer | CNTControlBase | 0x1C | CNTID |
Access on this interface is RO.
13/12/2018 16:42; 6379d01c197f1d40720d32d0f84c419c9187c009
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