The CTIDEVID characteristics are:
Describes the CTI component to the debugger.
CTIDEVID is in the Debug power domain.
CTIDEVID is a 32-bit register.
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 |
RES0 | INOUT | RES0 | NUMCHAN | RES0 | NUMTRIG | RES0 | EXTMUXNUM |
Reserved, RES0.
Input/output options. Indicates presence of the input gate. If the CTM is not implemented or CTIv2 is not implemented, this field is RAZ.
INOUT | Meaning |
---|---|
0b00 |
CTIGATE does not mask propagation of input events from external channels. |
0b01 |
CTIGATE masks propagation of input events from external channels. |
All other values are reserved.
Reserved, RES0.
Number of ECT channels implemented. IMPLEMENTATION DEFINED. For Armv8, valid values are:
NUMCHAN | Meaning |
---|---|
0b000011 |
3 channels (0..2) implemented. |
0b000100 |
4 channels (0..3) implemented. |
0b000101 |
5 channels (0..4) implemented. |
0b000110 |
6 channels (0..5) implemented. |
and so on up to 0b100000, 32 channels (0..31) implemented.
All other values are reserved.
Reserved, RES0.
Number of triggers implemented. IMPLEMENTATION DEFINED. This is one more than the index of the largest trigger, rather than the actual number of triggers.
For Armv8, valid values are:
NUMTRIG | Meaning |
---|---|
0b000011 |
Up to 3 triggers (0..2) implemented. |
0b001000 |
Up to 8 triggers (0..7) implemented. |
0b001001 |
Up to 9 triggers (0..8) implemented. |
0b001010 |
Up to 10 triggers (0..9) implemented. |
and so on up to 0b100000, 32 triggers (0..31) implemented.
All other values are reserved. If the PE contains a Trace extension, this field must be at least 0b001000. There is no guarantee that any of the implemented triggers, including the highest numbered, are connected to any components.
Reserved, RES0.
Number of multiplexors available on triggers. This value is used in conjunction with External Control register, ASICCTL.
Component | Offset | Instance |
---|---|---|
CTI | 0xFC8 | CTIDEVID |
Accesses on this interface are RO.
30/06/2021 09:39; 4f5dd962f4e34e1ac282f76da4d6e7fc4cab087e
Copyright © 2010-2021 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.