COM Express® Carrier Board Design Guide
23
2.6 USB 3.0
2.6.1 Signal Definitions
Table 5: USB 2.0 Differential Lines
Signal
Pins Pins
Description
I/O
USB0+
A46
A46
USB Port 0, data + or D+
I/O USB
USB0-
A45
A45
USB Port 0, data - or D-
I/O USB
USB1+
B46
B46
USB Port 1, data + or D+
I/O USB
USB1-
B45
B45
USB Port 1, data - or D-
I/O USB
USB2+
A43
USB Port 2, data + or D+
I/O USB
USB2-
A42
USB Port 2, data - or D-
I/O USB
USB3+
B43
USB Port 3, data + or D+
I/O USB
USB3-
B42
USB Port 3, data - or D-
I/O USB
Table 6: USB Overcurrent Protection lines
Signal
Pins Pins
Description
I/O
USB_0_1_OC#
B44
B44
USB over-current sense, USB channels 0 and 1.
I CMOS
USB_2-3_OC#
A44
USB over-current sense, USB channels 2 and 3.
I CMOS
Table 7: USB 3.0 Differential Lines
Signal
Pins Pins
Description
I/O
US
D4
B23
USB Port 0, SuperSpeed TX +
O PCIE
USB_SSTX0-
D3
B22
USB Port 0, SuperSpeed TX -
O PCIE
US
D7
B26
USB Port 1, SuperSpeed TX +
O PCIE
USB_SSTX1-
D6
B25
USB Port 1, SuperSpeed TX -
O PCIE
US
D10
USB Port 2, SuperSpeed TX +
O PCIE
USB_SSTX2-
D9
USB Port 2, SuperSpeed TX -
O PCIE
US
D13
USB Port 3, SuperSpeed TX +
O PCIE
USB_SSTX3-
D12
USB Port 3, SuperSpeed TX -
O PCIE
US
C4
A23
USB Port 0, SuperSpeed RX +
I PCIE
USB_SSRX0-
C3
A22
USB Port 0, SuperSpeed RX -
I PCIE
US
C7
A26
USB Port 1, SuperSpeed RX +
I PCIE
USB_SSRX1-
C6
A25
USB Port 1, SuperSpeed RX -
I PCIE
US
C10
USB Port 2, SuperSpeed RX +
I PCIE
USB_SSRX2-
C9
USB Port 2, SuperSpeed RX -
I PCIE
US
C13
USB Port 3, SuperSpeed RX +
I PCIE
USB_SSRX3-
C12
USB Port 3, SuperSpeed RX -
I PCIE
Summary of Contents for ET976
Page 1: ...COM EXPRESS CARRIER BOARD DESIGN GUIDE Version 1 0 January 2022...
Page 11: ...COM Express Carrier Board Design Guide 5 Figure 3 PCI Express x4 Slot Example...
Page 12: ...6 COM Express Carrier Board Design Guide Figure 4 PCIe Mini Card Reference Circuitry...
Page 19: ...COM Express Carrier Board Design Guide 13 Figure 7 HDMI Example 1...
Page 20: ...14 COM Express Carrier Board Design Guide Figure 7 HDMI Example 2...
Page 21: ...COM Express Carrier Board Design Guide 15 Figure 8 DVI Example 1...
Page 22: ...16 COM Express Carrier Board Design Guide Figure 8 DVI Example 2...
Page 31: ...COM Express Carrier Board Design Guide 25 Figure 12 USB 3 0 Example 2...
Page 37: ...COM Express Carrier Board Design Guide 31 Figure 14 LVDS Reference Schematic 2...
Page 44: ...38 COM Express Carrier Board Design Guide Figure 16 VGA Reference Schematics 2...
Page 48: ...42 COM Express Carrier Board Design Guide Figure 18 HDA Example Schematic 2...
Page 52: ...46 COM Express Carrier Board Design Guide Figure 19 LPC Super I O Example 2...
Page 61: ...COM Express Carrier Board Design Guide 55 Figure 24 General Purpose Serial Port Example 2...
Page 70: ...64 COM Express Carrier Board Design Guide Figure 28 PWRBTN and SYS_RESET Circuitry...
Page 84: ...78 COM Express Carrier Board Design Guide Chapter 4 Carrier Board PCB Layout Guidelines...