600 Series Chipset Family On-Package Platform Controller Hub

Datasheet, Volume 1 of 2

ID 691222
Date 01/05/2022

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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 based touch ICs. THC provides high bandwidth DMA services to the touch driver and transfer the touch raw data or HID reports to internal touch accelerator (example, graphics EUs or host CPU), or host driver respectively.

The THC controller bridges the SoC bus and SPI ports, below are the details.

  • THC Controller
    • Touch Host controller bridges the SoC bus and SPI
    • The THC Controller has the following interfaces
      • IOSF Primary Interface for DMA operation and register access
        • Minimum 100MHz 64 bit
      • SPI IO interface
  • SPI IO
    • 1.8V SPI IOs
    • Provides SPI interface to the THC core

THC Block Diagram