Intel® Core™ Ultra 200V Series Processors

Datasheet, Volume 1 of 2

ID Date Version Classification
829568 05/27/2025 004 Confidential
Document Table of Contents

Functional Description

The Touch Host Controller (THC) supports a host controller interface to the touch IC for high bandwidth touch data transfer from SPI and I2C based touch ICs. THC provides low latency DMA services to the system memory for OS input stack.

There are Two THC controllers available in Intel® Core™ Ultra 200V Series Processor Platform. Each can be configured to either I2C or SPI interface for the device connection. THC0 is the primary controller. If only one THC is used, THC0 is the preferred choice for ease of system FW/OS image integration.

  • THC Controller
    • Touch Host controller supports SPI(upto Quad IO) and I2C interface for touch ICs connection.
    • 1.8 V IO's supported for SPI and I2C interface
    • The THC-SPI supported frequency are are 8 MHz, 15 MHz, 17 MHz, 20 MHz, 25 MHz, 32 MHz, and 42 MHz.
    • Maximum frequency supported THC-I2C is 3.4 MHz.
    • Input for display sync signal for touch scroll smoothing
Note:Due to current THC panel availability, Intel validated up to 32 MHz Touch panels for THC-SPI interface even though the Maximum frequency supported is 42 MHz.

THC Block Diagram