USB31_​1_​RXN

USB31_​1_​RXP

I

USB 3.2 Differential Receive Pair 1: These are USB 3.2-Gen 2x1 differential signals for Port #1 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

USB31_​1_​TXP

USB31_​1_​TXN

O

USB 3.2 Differential Transmit Pair 1: These are USB 3.2-Gen 2x1 differential signals for Port #1 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

USB31_​2_​RXN

USB31_​2_​RXP

I

USB 3.2 Differential Receive Pair 2: These are USB 3.2-Gen 2x1 differential signals for Port #2 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

USB31_​2_​TXN

USB31_​2_​TXP

O

USB 3.2 Differential Transmit Pair 2: These are USB 3.2-Gen 2x1 differential signals for Port #2 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

SATA_​1_​RXP/USB30_​4_​RXP/PCIE_​8_​RXP

SATA_​1_​RXN/USB30_​4_​RXN/PCIE_​8_​RXN

I

USB 3.2 Differential Receive Pair 4: These are USB 3.2-Gen 1x1 differential signals for Port #4 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

SATA_​1_​TXP/USB30_​4_​TXP/PCIE_​8_​TXP

SATA_​1_​TXN/USB30_​4_​TXN/PCIE_​8_​TXN

O

USB 3.2 Differential Transmit Pair 4: These are USB 3.2-Gen 1x1 differential signals for Port #4 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

PCIE_​6_​RXP/USB30_​1_​RXP

PCIE_​6_​RXN/USB30_​1_​RXN

I

USB 3.2 Differential Receive Pair 1: These are USB 3.2-Gen 1x1 differential signals for Port #5 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

PCIE_​6_​TXP/USB30_​1_​TXP,

PCIE_​6_​TXN/USB30_​1_​TXN

O

USB 3.2 Differential Transmit Pair 1: These are USB 3.2-Gen 1x1 differential signals for Port #5 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

PCIE_​5_​RXP/USB30_​2_​RXP,

PCIE_​5_​RXN/USB30_​2_​RXN

I

USB 3.2 Differential Receive Pair 2: These are USB 3.2-Gen 1x1 differential signals for Port #6 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

PCIE_​5_​TXP/USB30_​2_​TXP

,PCIE_​5_​TXN/USB30_​2_​TXN

O

USB 3.2 Differential Transmit Pair 2: These are USB 3.2-Gen 1x1 differential signals for Port #6 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

PCIE_​4_​RXP/USB30_​3_​RXP,

PCIE_​5_​RXN/USB30_​3_​RXN

I

USB 3.2 Differential Receive Pair 3: These are USB 3.2-Gen 1x1 differential signals for Port #6 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

PCIE_​4_​TXP/USB30_​3_​TXP

,PCIE_​4_​TXN/USB30_​3_​TXN

O

USB 3.2 Differential Transmit Pair 3: These are USB 3.2-Gen 1x1 differential signals for Port #6 and the xHCI. It should be map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​1,

USB2N_​1

I/O

USB 2.0 Port 1 Transmit/Receive Differential Pair 1: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​2,

USB2N_​2

I/O

USB 2.0 Port 2 Transmit/Receive Differential Pair 2: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​3,

USB2N_​3

I/O

USB 2.0 Port 3Transmit/Receive Differential Pair 3: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​4,

USB2N_​4

I/O

USB 2.0 Port 4 Transmit/Receive Differential Pair 4: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​5,

USB2N_​5

I/O

USB 2.0 Port 5 Transmit/Receive Differential Pair 5: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​6,

USB2N_​6

I/O

USB 2.0 Port 6 Transmit/Receive Differential Pair 6: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​7,

USB2N_​7

I/O

USB 2.0 Port 7 Transmit/Receive Differential Pair 7: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

USB2P_​8,

USB2N_​8

I/O

USB 2.0 Port 8 Transmit/Receive Differential Pair 8: This USB 2.0 signal pair are routed to xHCI and should map to a USB connector with one of the OC (overcurrent) signals.

GP_​A18/USB_​OC0_​N

I

Overcurrent Indicators: These signals set corresponding bits in the USB controller to indicate that an overcurrent condition has occurred.

GP_​A12/USB_​OC1_​N

I

Overcurrent Indicators: These signals set corresponding bits in the USB controller to indicate that an overcurrent condition has occurred.

GP_​A13/USB_​OC2_​N

I

Overcurrent Indicators: These signals set corresponding bits in the USB controller to indicate that an overcurrent condition has occurred.

GP_​A14/USB_​OC3_​N

I

Overcurrent Indicators: These signals set corresponding bits in the USB controller to indicate that an overcurrent condition has occurred.

USB_​VBUSSENSE

I

VBUS Sense for USB Device mode. Refer to OTG 3.0 specification for the sensing threshold voltage spec.

• This HW signal is not used on the PCH for USB device mode functionality. This signal should be connected to ground.

USB_​ID

I

ID detect for USB Device mode.

• This HW signal is not used on the PCH for dual role mode selection. The switching of USB port role is done through the eSPI message from EC. This signal should be connected to ground.

USB2_​RCOMP

I

USB Resistor Bias, analog connection points for an external resistor to ground.