Signal Description

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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
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
- 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
Private Configuration Space Target Port ID
Miscellaneous Signals

Name	Type	Description
GPP_C16 / I2C0_SDA	I/OD	I²C Link 0 Serial Data Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_C17 / I2C0_SCL	I/OD	I²C Link 0 Serial Clock Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_C18 / I2C1_SDA	I/OD	I²C Link 1 Serial Data Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_C19 / I2C1_SCL	I/OD	I²C Link 1 Serial Clock Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_H4 / I2C2_SDA	I/OD	I²C Link 2 Serial Data Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_H5 / I2C2_SCL	I/OD	I²C Link 2 Serial Clock Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_H6 / I2C3_SDA	I/OD	I²C Link 3 Serial Data Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_H7 / I2C3_SCL	I/OD	I²C Link 3 Serial Clock Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_H8 / I2C4_SDA / CNV_MFUART2_RXD	I/OD	I²C Link 4 Serial Data Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_H9 / I2C4_SCL / CNV_MFUART2_TXD	I/OD	I²C Link 4 Serial Data Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_B9 / I2C5_SDA / ISH_I2C2_SDA	I/OD	I²C Link 5 Serial Data Line External Pull-up resistor may be required depending on Bus Capacitance.
GPP_B10 / I2C5_SCL / ISH_I2C2_SCL	I/OD	I²C Link 5 Serial Clock Line External Pull-up resistor may be required depending on Bus Capacitance.

Integrated Pull-Ups and Pull-Downs

Intel® Serial I/O Inter-Integrated Circuit (I2C) Controllers Integrated Pull-Ups and Pull-Downs