COM Express Interfaces
2.1.1. Connector Pin-out Comparison
Table 4: Pin-out Comparison
Pin# Type 10 Description Type 2 Description Type 6 Description
A1 GND(FIXED) GND(FIXED) GND(FIXED)
A2 GBE0_MDI3- GBE0_MDI3- GBE0_MDI3-
A3 GBE0_MDI3+ GBE0_MDI3+ GBE0_MDI3+
A4 GBE0_LINK100# GBE0_LINK100# GBE0_LINK100#
A5 GBE0_LINK1000# GBE0_LINK1000# GBE0_LINK1000#
A6 GBE0_MDI2- GBE0_MDI2- GBE0_MDI2-
A7 GBE0_MDI2+ GBE0_MDI2+ GBE0_MDI2+
A8 GBE0_LINK# GBE0_LINK# GBE0_LINK#
A9 GBE0_MDI1- GBE0_MDI1- GBE0_MDI1-
A10 GBE0_MDI1+ GBE0_MDI1+ GBE0_MDI1+
A11 GND(FIXED) GND(FIXED) GND(FIXED)
A12 GBE0_MDI0- GBE0_MDI0- GBE0_MDI0-
A13 GBE0_MDI0+ GBE0_MDI0+ GBE0_MDI0+
A14 GBE0_CTREF GBE0_CTREF GBE0_CTREF
A15 SUS_S3# SUS_S3# SUS_S3#
A16 SATA0_TX+ SATA0_TX+ SATA0_TX+
A17 SATA0_TX- SATA0_TX- SATA0_TX-
A18 SUS_S4# SUS_S4# SUS_S4#
A19 SATA0_RX+ SATA0_RX+ SATA0_RX+
A20 SATA0_RX- SATA0_RX- SATA0_RX-
A21 GND(FIXED) GND(FIXED) GND(FIXED)
A22 USB_SSRX0- SATA2_TX+ SATA2_TX+
A23 USB_SSRX0+ SATA2_TX- SATA2_TX-
A24 SUS_S5# SUS_S5# SUS_S5#
A25 USB_SSRX1- SATA2_RX+ SATA2_RX+
A26 USB_SSRX1+ SATA2_RX- SATA2_RX-
A27 BATLOW# BATLOW# BATLOW#
A28 (S)ATA_ACT# (S)ATA_ACT# (S)ATA_ACT#
A29 AC/HDA_SYNC AC/HDA_SYNC AC/HDA_SYNC
A30 AC/HDA_RST# AC/HDA_RST# AC/HDA_RST#
A31 GND(FIXED) GND(FIXED) GND(FIXED)
A32 AC/HDA_BITCLK AC/HDA_BITCLK AC/HDA_BITCLK
A33 AC/HDA_SDOUT AC/HDA_SDOUT AC/HDA_SDOUT
A34 BIOS_DIS0# BIOS_DIS0# BIOS_DIS0#
A35 THRMTRIP# THRMTRIP# THRMTRIP#
A36 USB6- USB6- USB6-
A37 USB6+ USB6+ USB6+
A38 USB_6_7_OC# USB_6_7_OC# USB_6_7_OC#
A39 USB4- USB4- USB4-
A40 USB4+ USB4+ USB4+
A41 GND(FIXED) GND(FIXED) GND(FIXED)
A42 USB2- USB2- USB2-
A43 USB2+ USB2+ USB2+
PICMG
®
COM Express
®
Carrier Board Design Guide Rev. 2.0 / December 6, 2013
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