Intel® High Definition Audio (Intel® HD Audio) Controller Capabilities

Legal Disclaimer
Revision History
Introduction
PCH Controller Device IDs
- Revision IDs
- Device IDs
Memory Mapping
- Functional Description
- Memory Map
Audio Voice and Speech
Ballout Definition
Connectivity Integrated (CNVi)
Controller Link
Direct Enhanced Serial Peripheral Interface (Direct eSPI)
Direct Media Interface (DMI)
Enhanced Serial Peripheral Interface (eSPI)
Gigabit Ethernet Controller
Host System Management Bus (SMBus) Controller
Integrated Sensor Hub (ISH)
Intel® Serial I/O Improved Inter-Integrated Circuit (I3C) Controllers
Intel® Serial I/O Inter-Integrated Circuit (I2C) Controllers
Intel® Serial I/O Universal Asynchronous Receiver/Transmitter (UART) Controllers
Intel® Serial IO Generic SPI (GSPI) Controllers
PCI Express* (PCIe*)
Real Time Clock (RTC)
- Signal Description
- I/O Signal Planes and States
Serial ATA (SATA)
Serial Peripheral Interface (SPI)
System Clocks
- Integrated Clock Controller (ICC)
  - Signal Descriptions
- I/O Signal Pin States
System Management Interface and SMLink
Touch Host Controller (THC)
Universal Serial Bus (USB)
General Purpose Input and Output
- Functional Description
- Signal Description
GPIO Serial Expander
Private Configuration Space Port ID
Security Firmware Engines
- Intel® Converged Security and Management Engine (Intel® CSME)
- Intel® Silicon Security Engine
System Management
- Theory of Operation
  - TCO Modes
Testability and Monitoring
- Signal Description
- I/O Signal Planes and States
Miscellaneous Signals
Processor Sideband Signals
- Signal Description
- I/O Signal Planes and States
Power Delivery
- Power and Ground Signals
Power Management
Thermal Sensor
Electrical Characteristics

The Intel^® HD Audio controller is the standard audio host controller widely adopted in the PC platform, with industrial standard Intel^® HD Audio driver software available for Microsoft* Windows* and many other Linux* based Operating Systems. With the converged audio architecture initiatives, it is also the baseline audio host controller for phone and tablet platforms with optional DSP support. Intel^® HD Audio controller capabilities are listed as follows:

PCI / PCI Express* controller
- Option to hide PCI configuration space and use ACPI method for enumeration

Supports data transfers, descriptor fetches, and DMA position writes using VC0 or VC1

Independent Bus Host logic for 19 general purpose DMA streams: 10 input and 9 output

Supports variable length stream slots

Each general purpose stream supports up to:
- 16 channels per stream
- 32 bits/sample
- 192 kHz sample rate

Supports memory-based command/response transport

Supports optional Immediate Command/Response mechanism

Supports input and output stream synchronization

Supports MSI interrupt delivery

Support for ACPI D3 and D0 Device States

Supports Function Level Reset (FLR)
- Only if exposed as a PCI Express device (or ACPI method)

Support Converged Platform Power Management (CPPM)
- Support 1 ms of buffering with all DMA running with maximum bandwidth

Audio DSP Capabilities

Audio Voice and Speech Audio DSP Capabilities