Audio Voice and Speech

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Revision History
Introduction and SKU Definition
PCH Controller Device IDs
- Device and Revision ID Table
Memory Mapping
- Functional Description
- Memory Map
  - Boot Block Update Scheme
System Management
- Theory of Operation
  - Handling an Intruder
  - TCO Modes
High Precision Event Timer (HPET)
- Features Supported
PCH Thermal Sensor
Power Delivery
- Power and Ground Signals
- FIVR
Pin Straps
Electrical and Thermal Characteristics
Ballout Definition
8254 Timers
- Timer Programming
- Reading from the Interval Timer
Audio Voice and Speech
Controller Link
Processor Sideband Signals
Digital Display Signals
Enhanced Serial Peripheral Interface eSPI
General Purpose Input and Output (GPIO)
- Signal Description
- Functional Description
Intel® Serial I/O Inter-Integrated Circuit (I2C) Controllers
Gigabit Ethernet Controller
Integrated Sensor Hub (ISH)
PCH and System Clocks
PCI Express* (PCIe*)
Power Management
Real Time Clock (RTC)
- Signal Description
- I/O Signal Planes and States
Serial ATA (SATA)
System Management Interface and SMLink
Host System Management Bus (SMBus) Controller
Serial Peripheral Interface (SPI)
Touch Host Controller (THC)
Intel® Serial IO Generic SPI (GSPI) Controllers
Testability
Intel® Serial I/O Universal Asynchronous Receiver/Transmitter (UART) Controllers
Universal Serial Bus (USB)
Connectivity Integrated (CNVi)
GPIO Serial Expander
Direct Media Interface
Private Configuration Space Target Port ID
Miscellaneous Signals
- Signal Description

Acronyms	Description
DMA	Direct Memory Access
DMIC	Digital Microphone PDM based MEMs microphone modules.
DSP	Digital Signal Processor In AVS, specifically a DSP to process audio data.
I²S	Inter IC Sound A serial bus using PCM.
MEMs	Micro Electrical Mechanical Systems For AVS, devices such as Digital MEMs Microphones.
MSI	Message Signaled Interrupt An in-band method of signaling an interrupt.
PCM	Pulse Code Modulation Modulation with amplitude coded into stream.
PDM	Pulse Density Modulation Modulation with amplitude coded by pulse density.
SDI	Serial Data In
SDO	Serial Data Out
SoC	System On Chip
VOIP	Voice Over Internet Protocol

Reading from the Interval Timer Features Supported