Connections
CB1067
32
Version: 1.0
Pin assignment of PCI-Express x16 connector
Description
Name
Pin
Name
Description
Hot Plug Detect 1
PRSNT1#
A1
B1
12 V
12 V supply voltage
12 V supply voltage
12 V
A2
B2
12 V
12 V supply voltage
12 V supply voltage
12 V
A3
B3
RSVD
Reserved
Ground
GND
A4
B4
GND
Ground
Test Clock
TCK
A5
B5
SMBCLK
SMBus Clock PCIe
Not connected
TDI
A6
B6
SMBDAT
SMBus Data PCIe
Not connected
TDO
A7
B7
GND
Ground
Not connected
TMS
A8
B8
3.3 V
3.3 V supply voltage
3.3 V supply voltage
3.3 V
A9
B9
TRST
Not connected
3.3 V supply voltage
3.3 V
A10
B10 S3.3V
Standby voltage 3.3 V
PCIe Reset
PERST#
A11
B11 PEWAKE# Link Reactivation
Ground
GND
A12
B12 RSVD
Not connected
Reference Clock +
REFCLK
A13
B13 GND
Ground
Reference Clock -
REFCLK#
A14
B14 PET0
Transmit Lane 0 +
Ground
GND
A15
B15 PET0#
Transmit Lane 0 -
Receive Lane 0 +
PER0
A16
B16 GND
Ground
Receive Lane 0 -
PER0#
A17
B17 PRSNT2#
Hot Plug Detect 2
Ground
GND
A18
B18 GND
Ground
Not connected
RSVD
A19
B19 PET1
Transmit Lane 1 +
Ground
GND
A20
B20 PET1#
Transmit Lane 1 -
Receive Lane 1 +
PER1
A21
B21 GND
Ground
Receive Lane 1 -
PER1#
A22
B22 GND
Ground
Ground
GND
A23
B23 PET2
Transmit Lane 2 +
Ground
GND
A24
B24 PET2#
Transmit Lane 2 -
Receive Lane 2 +
PER2
A25
B25 GND
Ground
Receive Lane 2 -
PER2#
A26
B26 GND
Ground
Ground
GND
A27
B27 PET3
Transmit Lane 3 +
Ground
GND
A28
B28 PET3#
Transmit Lane 3 -
Receive Lane 3 +
PER3
A29
B29 GND
Ground
Receive Lane 3 -
PER3#
A30
B30 RSVD
Not connected
Ground
GND
A31
B31 PRSNT2#
Hot Plug Detect 2
Not connected
RSVD
A32
B32 GND
Ground
Not connected
RSVD
A33
B33 PET4
Transmit Lane 4 +
Ground
GND
A34
B34 PET4#
Transmit Lane 4 -
Receive Lane 4 +
PER4
A35
B35 GND
Ground
Receive Lane 4 -
PER4#
A36
B36 GND
Ground
Ground
GND
A37
B37 PET5
Transmit Lane 5 +
Ground
GND
A38
B38 PET5#
Transmit Lane 5 -
Receive Lane 5 +
PER5
A39
B39 GND
Ground
Receive Lane 5 -
PER5#
A40
B40 GND
Ground
Ground
GND
A41
B41 PET6
Transmit Lane 6 +
Ground
GND
A42
B42 PET6#
Transmit Lane 6 -
Receive Lane 6 +
PER6
A43
B43 GND
Ground
Receive Lane 6 -
PER6#
A44
B44 GND
Ground
Ground
GND
A45
B45 PET7
Transmit Lane 7 +
Ground
GND
A46
B46 PET7#
Transmit Lane 7 -
Receive Lane 7 +
PER7
A47
B47 GND
Ground