# References

Source: [https://docs.qualcomm.com/doc/80-70014-12/topic/references.html](https://docs.qualcomm.com/doc/80-70014-12/topic/references.html)

## Related documents

Source: [https://docs.qualcomm.com/doc/80-70014-12/topic/references.html](https://docs.qualcomm.com/doc/80-70014-12/topic/references.html)

| Title | Number |
| --- | --- |
| **Qualcomm Technologies,                                Inc.** | **Qualcomm Technologies,                                Inc.** |
| [Qualcomm Linux Security<br>                                    Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70014-11) | 80-70014-11 |
| [Qualcomm Linux Boot<br>                                Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70014-4) | 80-70014-4 |
| [Qualcomm Linux Kernel<br>                                    Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70014-3) | 80-70014-3 |
| [QCS6490/QCS5430 Data<br>                                Sheet](https://docs.qualcomm.com/bundle/publicresource/topics/80-23889-1/device-description.html) | 80-23889-1 |
| [Qualcomm Linux Yocto<br>                                Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70014-27/intro_yocto_linux_qualcomm.html) | 80-70014-27 |
| **Resources** | **Resources** |
| [Qualcomm® Package Manager 3<br>                                    Documentation](https://qpm.qualcomm.com/assets/userguide/external/book/0.UserGuide/UserGuide.html) | [Qualcomm® Package Manager 3<br>                                    Documentation](https://qpm.qualcomm.com/assets/userguide/external/book/0.UserGuide/UserGuide.html) |
| [Arm System Memory Management Unit<br>                                    Architecture Specification, IHI0062D](https://developer.arm.com/documentation/ihi0062/dc) | [Arm System Memory Management Unit<br>                                    Architecture Specification, IHI0062D](https://developer.arm.com/documentation/ihi0062/dc) |
| [https://docs.kernel.org/trace/coresight/coresight-perf.html](https://docs.kernel.org/trace/coresight/coresight-perf.html) | [https://docs.kernel.org/trace/coresight/coresight-perf.html](https://docs.kernel.org/trace/coresight/coresight-perf.html) |
| [https://docs.kernel.org/trace/coresight/index.html](https://docs.kernel.org/trace/coresight/index.html) | [https://docs.kernel.org/trace/coresight/index.html](https://docs.kernel.org/trace/coresight/index.html) |
| [https://perf.wiki.kernel.org/index.php/Tutorial](https://perf.wiki.kernel.org/index.php/Tutorial) | [https://perf.wiki.kernel.org/index.php/Tutorial](https://perf.wiki.kernel.org/index.php/Tutorial) |
| [https://man7.org/linux/man-pages/man1/ltrace.1.html](https://man7.org/linux/man-pages/man1/ltrace.1.html) | [https://man7.org/linux/man-pages/man1/ltrace.1.html](https://man7.org/linux/man-pages/man1/ltrace.1.html) |
| [https://man7.org/linux/man-pages/man1/gdb.1.html](https://man7.org/linux/man-pages/man1/gdb.1.html) | [https://man7.org/linux/man-pages/man1/gdb.1.html](https://man7.org/linux/man-pages/man1/gdb.1.html) |
| [https://man7.org/linux/man-pages/man5/core.5.html](https://man7.org/linux/man-pages/man5/core.5.html) | [https://man7.org/linux/man-pages/man5/core.5.html](https://man7.org/linux/man-pages/man5/core.5.html) |
| [https://man7.org/linux/man-pages/man1/gdbserver.1.html](https://man7.org/linux/man-pages/man1/gdbserver.1.html) | [https://man7.org/linux/man-pages/man1/gdbserver.1.html](https://man7.org/linux/man-pages/man1/gdbserver.1.html) |
| [https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-system-cpu](https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-system-cpu) | [https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-system-cpu](https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-devices-system-cpu) |
| [https://man7.org/linux/man-pages/man8/crash.8.html](https://man7.org/linux/man-pages/man8/crash.8.html) | [https://man7.org/linux/man-pages/man8/crash.8.html](https://man7.org/linux/man-pages/man8/crash.8.html) |

## Acronyms and terms

Source: [https://docs.qualcomm.com/doc/80-70014-12/topic/references.html](https://docs.qualcomm.com/doc/80-70014-12/topic/references.html)

| Acronym or term | Definition |
| --- | --- |
| aDSP | Application Digital Signal Processor (aDSP) |
| AHB | Advanced High-performance Bus |
| AMSS | Advanced Mobile Subscriber Station |
| AOP | Always-on-processor |
| APSS/APPS | Application Processor Subsystem |
| cDSP | Compute DSP |
| CMA | Contiguous Memory Allocator |
| CNoC | Config Network on chip |
| DCC | Data capture and compare |
| DDR | Double Data Rate |
| FAR | Fault Address Register |
| FIQ | Fast interrupt request |
| FSR | Fault Status Register |
| GDB | GNU debugger |
| GFP | Get free pages |
| HLOS | High-level OS |
| JTAG | Joint Test Action Group |
| LPASS | Low-Power Audio Subsystem |
| mDSP | Modem DSP |
| MPM | Mobile Station Modem Power Manager |
| NMI | Non-maskable interrupt |
| NoC | Network-on-chip<br>It is a bus connecting multiple masters and slaves.<br>                                There are many types of NoCs such as System NoC (SNoC), Config NoC<br>                                (CNoC), Multimedia NoC (MMNoC). |
| PCB | Printed circuit board |
| PMIC | Power Management IC<br>PMIC is the power supply block of the<br>                                chipset. |
| PS\_HOLD | It is a Power Supply Hold signal line from the chipset to the<br>                            PMIC. |
| QCAP | Qualcomm Crash Analysis Portal |
| QDSS | Qualcomm Debug Subsystem |
| RPMh | Resource Power Management Hardening<br>It is part of AOP and used in<br>                                regulating the power on the device. |
| SDI | Software Debug Image<br>This is a debug feature in the TrustZone to<br>                                capture all subsystems core context in the RAM dump during an<br>                                abnormal reset. For more information on RAM dump, see [RAM dump](https://docs.qualcomm.com/bundle/publicresource/topics/80-70014-12/Debug-overview.html#ram-dump). |
| SNoC | System Network on Chip |
| SPM | Subsystem Power Manager |
| SMMU | System Memory Management Unit |
| SS | Subsystem |
| T32 | Trace32 software from Lauterbach |
| TBU | Translation Buffer Unit. Arm SMMU IP component. |
| TCM | Tightly coupled memory |
| TSENS | Temperature Sensor<br>It captures the junction temperature of the<br>                                chipset. |
| TZ | TrustZone |
| WD | Watchdog <br>A watchdog is a fixed-length counter that enables a<br>                                system to recover from an unexpected hardware or software<br>                                catastrophe. |
| WD Bark | Watchdog timeout that results in a bark interrupt and kernel<br>                            panic. |
| WB Bite | Watchdog timeout that occurs if a watchdog is not petted even after<br>                            WD Bark, resulting in a bite interrupt in secure mode. This further<br>                            leads to a system reset. |
| WPSS | WLAN Processor Subsystem |
| XBL | eXtensible BootLoader |
| xPU | External Protection Unit<br>It is a module in the TrustZone subsystem<br>                                and is meant for protecting memory, address, and<br>                            register. |

Last Published: Jul 12, 2024

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