User's Manual l TQMx50UC UM 0101 l © 2018 TQ-Group
Page 15
3.7.2
COM Express™ Connector Pin Assignment
Table 10:
COM Express™ Connector Pin Assignment
Pin
Pin-Signal
Description
Type
Remark
A1
GND(FIXED)
Ground
GND
A2
GBE0_MDI3–
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A3
GB
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A4
GBE0_LINK100#
Gigabit Ethernet Controller 0 100 Mbit / sec link indicator
OD
A5
GBE0_LINK1000#
Gigabit Ethernet Controller 0 1000 Mbit / sec link indicator
OD
A6
GBE0_MDI2–
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A7
GB
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A8
GBE0_LINK#
Gigabit Ethernet Controller 0 link indicator
OD
A9
GBE0_MDI1–
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A10
GB
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A11
GND(FIXED)
Ground
GND
A12
GBE0_MDI0–
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A13
GB
Gigabit Ethernet Controller 0: Media Dependent Interface
I/O
A14
GBE0_CTREF
Reference voltage for Carrier Board Ethernet channel 0
Power
A15
SUS_S3#
Indicates system is in Suspend to RAM state. Active low output.
O PD TQ-flexiCFG
A16
S
SATA differential transmit pairs
O
A17
SATA0_TX–
SATA differential transmit pairs
O
A18
SUS_S4#
Indicates system is in Suspend to Disk state. Active low output.
O PD TQ-flexiCFG
A19
S
SATA differential receive pairs
I
A20
SATA0_RX–
SATA differential receive pairs
I
A21
GND(FIXED)
Ground
GND
A22
S
SATA differential transmit pairs
O
A23
SATA2_TX–
SATA differential transmit pairs
O
A24
SUS_S5#
Indicates system is in Soft Off state. Active low output.
O PD TQ-flexiCFG
A25
S
SATA differential receive pairs
I
A26
SATA2_RX–
SATA differential receive pairs
I
A27
BATLOW#
Indicates that external battery is low
I PU
A28
(S)ATA_ACT#
SATA activity indicator
O
A29
AC/HDA_SYNC
Sample-synchronization signal to the CODEC(s)
O
A30
AC/HDA_RST#
Reset output to CODEC, active low.
O
A31
GND(FIXED)
Ground
GND
A32
AC/HDA_BITCLK
Serial data clock generated by the external CODEC(s)
I/O
A33
AC/HDA_SDOUT
Serial TDM data output to the CODEC
O
A34
BIOS_DIS0#
Selection straps to determine the BIOS boot device
I PU
A35
THRMTRIP#
indicating that the CPU has entered thermal shutdown
O
A36
USB6–
USB differential pairs
I/O
A37
USB6+
USB differential pairs
I/O
A38
USB_6_7_OC#
USB over-current sense, USB channels 6 and 7
I PU
A39
USB4–
USB differential pairs
I/O
A40
USB4+
USB differential pairs
I/O
A41
GND(FIXED)
Ground
GND
A42
USB2–
USB differential pairs
I/O
A43
USB2+
USB differential pairs
I/O
A44
USB_2_3_OC#
USB over-current sense, USB channels 2 and 3
I PU
A45
USB0–
USB differential pairs
I/O
A46
USB0+
USB differential pairs
I/O
A47
VCC_RTC
Real-time clock circuit-power input. N3.0 V
Power
A48
EXCD0_PERST#
PCI ExpressCard: reset, active low, one per card
O
TQ-flexiCFG
A49
EXCD0_CPPE#
PCI ExpressCard: PCI Express capable card request, active low
I PU
TQ-flexiCFG
A50
LPC_SERIRQ
LPC serial interrupt
I/O
TQ-flexiCFG
A51
GND(FIXED)
Ground
GND
A52
P
PCI Express differential transmit pairs
O
N/A
A53
PCIE_TX5–
PCI Express differential transmit pairs
O
N/A
A54
GPI0/SD_DATA0
GPI0 / SDIO Data lines
I PU
TQ-flexiCFG
A55
P
PCI Express differential transmit pairs
O
N/A