# References Source: [https://docs.qualcomm.com/doc/80-70014-18/topic/references.html](https://docs.qualcomm.com/doc/80-70014-18/topic/references.html) ## Related documents | **Title** | **Number** | | --- | --- | | **Qualcomm Technologies, Inc.** | **Qualcomm Technologies, Inc.** | | **Open-source** | **Open-source** | | *DRM internals* | [https://www.kernel.org/doc/html/v5.4/gpu/drm-internals.html](https://www.kernel.org/doc/html/v5.4/gpu/drm-internals.html) | | *Kernel mode setting (KMS)* | [https://www.kernel.org/doc/html/v5.4/gpu/drm-kms.html](https://www.kernel.org/doc/html/v5.4/gpu/drm-kms.html) | | **Standards** | **Standards** | | *HDMI Specification* | [www.hdmi.org/](http://www.hdmi.org/) | | *MIPI* *Alliance Specification for D-PHY* | [mipi.org](http://www.mipi.org/) | | *MIPI Alliance Specification* *for DSI* | [mipi.org](http://www.mipi.org/) | | *MIPI Alliance Specification for DCS* | [mipi.org](http://www.mipi.org/) | | *VESA Display Stream Compression* | [www.vesa.org](http://www.vesa.org/) | | *VESA DisplayPort* | [www.vesa.org](http://www.vesa.org/) | ## Acronyms and terms | **Acronym or Term** | **Definition** | | --- | --- | | BTA | Bus turnaround | | DM | Display manager | | DMA | Direct memory access | | DPU | Display processing unit | | DSC | Display stream compression | | DSI | Display serial interface | | DPCD | Display port configuration data | | DRM | Direct rendering manager | | DSPP | Destination surface processor | | DDIC | Display driver IC | | EDID | Extended display identification data | | EMI | Electromagnetic interference | | EOF | End of frame | | ESD | Electrostatic discharge | | FHD | Full HD | | HDCP | High-bandwidth digital content protection | | HSA | Horizontal sync active | | HBP | Horizontal back porch | | HFP | Horizontal front porch | | HSE | Horizontal sync end | | HPD | Hot plug detect | | KMS | Kernel mode setting | | LM | Layer mixer | | SDM | Snapdragon display manager | | SSPP | Source surface processor pipes | | SSC | Spread spectrum clocking | | SST | Single stream transport | | SCP | Secure copy protocol | | MIPI DSI | Mobile industry processor interface display serial
interface | | IOCTL | I/O control | | CRTC | Cathode ray tube controller | | PD | Power delivery | | TE | Test equipment | | UEFI | Unified extensible firmware interface | | WQHD | Wide Quad HD | | VSS | Vsync start | | VSE | Vertical sync end | Last Published: Jul 16, 2024 [Previous Topic Debug](https://docs.qualcomm.com/bundle/publicresource/80-70014-18/topics/debug.md)