# References ## Acronyms and terms Acronyms and terms | Acronym | Definition | | --- | --- | | DAE | DRAM authentication encryption | | DARE | DRAM authentication replay-protection encryption | | DDR | Double data rate | | DE | DRAM encryption | | EL3 | Exception level 3 | | HLOS | High-level operating system | | ICMEM | Integrated circuit memory | | LCP | Last Level Cache Controller co-processor | | LCP-DARE | Last Level Cache Controller Co-Processor DRAM Authentication
Replay-Protection Encryption | | LLCC | Last Level Cache Controller | | MC | Memory controller | | NSP | Neural signal processor | | OCIMEM | On-chip internal memory | | OEM | Original equipment manufacturer | | pIMEM | Pseudo internal memory | | QDUTT | Qualcomm DDR USB test tool | | QPM | Qualcomm package manager | | RPC | Remote procedure call | | TA | Trusted application | | TZ | TrustZone | Last Published: Sep 08, 2026 [Previous Topic Assess total memory encryption performance](https://docs.qualcomm.com/bundle/publicresource/80-A0399-49/topics/assess-total-memory-encryption-performance.md)