User manual

Kontron Compact Computers AG SMX945 Detailed Manual V1.1
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6.3.2. COMexpress Connector Pinout
COMexpress type 2 (BUS on the smartModuleExpress 945) Connectors A / B: Pins 1-55
Pin Group Volt Length Signal Pin Group Volt Length Signal
A1 GND B1 GND
A2 LAN D MDI3- B2 LAN 3.3V LAN_ACTIVITY#
A3 LAN D MDI3+ B3 LPC 3.3V LPC_FRAME#
A4 LAN 3.3V SPEED100# B4 LPC 3.3V LPC_AD0
A5 LAN 3.3V SPEED1000# B5 LPC 3.3V LPC_AD1
A6 LAN D MD2I- B6 LPC 3.3V LPC_AD2
A7 LAN D MD2+ B7 LPC 3.3V LPC_AD3
A8 LAN 3.3V LAN_LINK# B8 LPC 3.3V LPC_DRQ0#
A9 LAN D MDI1- B9 LPC 3.3V LPC_DRQ1#
A10 LAN D MDI1+ B10 LPC 3.3V LPC_CLK
A11 GND B11 GND
A12 LAN D MD0- B12 PM 3.3V Input PWRBTN#
A13 LAN D MD0+ B13 SMB 3.3V SMB_CLK
A14 LAN CT-Ref B14 SMB 3.3V SMB_DAT
A15 PM 3.3V SUS_S3# B15 SMB 3.3V SMB_ALERT#
A16 SATA0 D SATA0-TX+ B16 SATA1 D SATA1-TX+
A17 SATA0 D SATA0-TX- B17 SATA1 D SATA1-TX-
A18 PM 3.3V SUS_S4# B18 PM 3.3V SUS_STAT#
A19 SATA0 D SATA0-RX+ B19 SATA1 D SATA1-RX+
A20 SATA0 D SATA0-RX0- B20 SATA1 D SATA1-RX-
A21 GND B21 GND
A22 SATA2  D NC B22 SATA3  D NC
A23 SATA2  D NC B23 SATA3  D NC
A24 PM 3.3V SUS_S5# B24 PM 3.3V PWR_OK
A25 SATA2  D NC B25 SATA3  D NC
A26 SATA2  D NC B26 SATA3  D NC
A27 PM 3.3V BATLOW# B27 PM 3.3V WDT
A28 IDE 3.3V ATA_ACTIVITY# B28 AC97 3.3V AC_SDIN2
A29 AC97 3.3V AC_SYNCH B29 AC97 3.3V AC_SDIN1
A30 AC97 3.3V AC_RST# B30 AC97 3.3V AC_SDIN0
A31 GND B31 GND
A32 AC97 3.3V AC_BITCLK B32 Legacy 3.3V Speaker Out
A33 AC97 3.3V AC_SDOUT B33 Not used 3.3V I2C-CK
A34 BIOS 3.3V BIOS_DISABLE# B34 Not used 3.3V I2C-DAT
A35 PM 3.3V THRMTRIP# B35 PM 3.3V THRM#
A36 USB6 D USB6- B36 USB7 D USB7-
A37 USB6 D USB6+ B37 USB7 D USB7+
A38 USB67OC 3.3V USB_6_7_OC# B38 USB45OC 3.3V USB_4_5_OC#
A39 USB4 D USB4- B39 USB5 D USB5-
A40 USB4 D USB4+ B40 USB5 D USB5+
A41 GND B41 GND
A42 USB2 D USB2- B42 USB3 D USB3-
A43 USB2 D USB2+ B43 USB3 D USB3+
A44 USB23OC 3.3V USB_2_3_OC# B44 USB01OC 3.3V USB_0_1_OC#
A45 USB0 D USB0- B45 USB1 D USB1-
A46 USB0 D USB0+ B46 USB1 D USB1+
A47 Supply VCC_RTC B47 PCIEX 3.3V EXCD1_PERST#
A48 PCIEX 3.3V EXCD0_PERST# B48 PCIEX 3.3V EXCD1_CPPE#
A49 PCIEX 3.3V EXCD0_CPPE# B49 Reset_In 3.3V MAIN_IN_RESET#
A50 LPC 3.3V LPC_SERIRQ B50 Reset_Out 3.3V CB_RESET# 
A51 GND B51 GND
A52 PCIEX5 D PCIe_TX5+ B52 PCIEX5 D PCIe_RX5+
A53 PCIEX5 D PCIe_TX5- B53 PCIEX5 D PCIe_RX5-
A54 3.3V GPI 0 B54 3.3V GPO 1
A55 PCIEX4 D PCIe_TX4+ B55 PCIEX4 D PCIe_RX4+
 The CB_Reset# is used to start the external Supply and works as Power_Enable.
 The SATA3/3 are not connected on the SMX945 because the 945GM has only 2 SATA ports!
Use only SATA0 and SATA1 with the SMX945 series Version 1.0.