Signal Description

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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

Signal Name	Type	Description
GPP_I14/ISH_I2C0_SDA/ISH_I3C0_SDA	I/OD	ISH I²C 0 Data ISH I³C 0 Data
GPP_I15/ISH_I2C0_SCL/ISH_I3C0_SCL	I/OD	ISH I²C 0 Clk ISH I³C 0 Clk
GPP_H18/ISH_I2C1_SDA/SMI#/USB-C_GPP_H18	I/OD	ISH I²C 1 Data
GPP_H19/ISH_I2C1_SCL/NMI#/USB-C_GPP_H19	I/OD	ISH I²C 1 Clk
GPP_C06/ISH_I2C2_SDA/I2C3_SDA/USB-C_GPP_C06	I/OD	ISH I²C 2 Data
GPP_C07/ISH_I2C2_SCL/I2C3_SCL/USB-C_GPP_C07	I/OD	ISH I²C 2 Clk
GPP_B08/ISH_GP0	I/O	ISH GPIO 0
GPP_B09/ISH_GP1	I/O	ISH GPIO 1
GPP_B10/ISH_GP2	I/O	ISH GPIO 2
GPP_B15/ISH_GP3	I/O	ISH GPIO 3
GPP_B16/ISH_GP4	I/O	ISH GPIO 4
GPP_B17/ISH_GP5	I/O	ISH GPIO 5
GPP_B05/SX_EXIT_HOLDOFF#/ISH_GP6	I/O	ISH GPIO 6
GPP_B07/ISH_GP7	I/O	ISH GPIO 7
GPP_B02/ISH_GP8	I/O	ISH GPIO 8
GPP_E11/ISH_GP9	I/O	ISH GPIO 9
GPP_E12/ISH_GP10	I/O	ISH GPIO 10
GPP_I16_RSVD/ISH_GP11	I/O	ISH GPIO 11
GPP_C04/ISH_UART0_TXD/SML0BCLK/I2C2_SCL/USB-C_GPP_C04	O	ISH UART 0 Transmit Data
GPP_C03/ISH_UART0_RXD/SML0BDATA/I2C2_SDA/USB-C_GPP_C03	I	ISH UART 0 Receive Data
GPP_B01/ISH_UART0_RTS#/GSPI2_CS1#	O	ISH UART 0 Request To Send
GPP_E21/ISH_UART0_CTS#/SML0BALERT#	I	ISH UART 0 Clear to Send
GPP_C13/UART1_TXD/ISH_UART1_TXD/USB-C_GPP_C13	O	ISH UART 1 Transmit Data
GPP_C12/UART1_RXD/ISH_UART1_RXD/USB-C_GPP_C12	I	ISH UART 1 Receive Data
GPP_C14/UART1_RTS#/ISH_UART1_RTS#/USB-C_GPP_C14	O	ISH UART 0 Request To Send
GPP_C15/UART1_CTS#/ISH_UART1_CTS#/USB-C_GPP_C15	I	ISH UART 1 Clear to Send
GPP_R09/ISH_SPI_CS#/GSPI2_CS0#	O	ISH SPI Chip Select
GPP_R10/ISH_SPI_CLK/GSPI2_CLK	O	ISH SPI Clock
GPP_R11/ISH_SPI_MISO/GSPI2_MISO	I	ISH SPI MISO
GPP_R12/ISH_SPI_MOSI/GSPI2_MOSI	O	ISH SPI MOSI

Integrated Pull-Ups and Pull-Down

ISH Interrupt Handling via IOAPIC (Interrupt Controller) Integrated Pull-Ups and Pull-Down