MITX-DNV0 Series - User Guide, Rev. 1.2
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7.12.
PCIE x8 Socket (PCIE1)
The 8-lane (x8) PCI Express slot connector can be used for external PCI Express cards inclusive graphics card and
dedicated TMDS passive card. The slot is located nearest the edge of the board. Maximum theoretical bandwidth
using 8 lines is 8 GB/s.
Figure 22: PCIE x8 Socket PCIE1
Table 38: Pin Assignment PCIE1
Pin
Side B Connector
Side A Connector
Signal
Description
Signal
Description
1
+12V
+12 V power
PRSNT1#
Hot plug presence detect
2
+12V
+12 V power
+12V
+12 V power
3
RSVD
Reserved
+12V
+12 V power
4
GND
Ground
GND
Ground
5
SMCLK
SMBus clock
JTAG2
TCK
6
SMDAT
SMBus data
JTAG3
TDI
7
GND
Ground
JTAG4
TDO
8
+3.3V
+3.3 V power
JTAG5
TMS
9
JTAG1
+TRST#
+3.3V
+3.3 V power
10
3.3VAUX
3.3 V power
+3.3V
+3.3 V power
11
PCIE_WAKE#
Link Reactivation
PERST#
Reset
Mechanical Key
12
RSVD
Reserved
GND
Ground
13
GND
Ground
Reference clock differential
pair
14
PETp0
Transmitter Lane 0,
differential pair
REFCLK-
15
PETn0
GND
Ground
16
GND
Ground
PERp0
Receiver Lane 0, differential
pair
17
PRSNT2#
Hot plug presence detect
PERn0
18
GND
Ground
GND
Ground
19
PETp1
Transmitter Lane 1, differential
pair
RSVD
Reserved
20
PETn1
GND
Ground
