MXH932
User’s Guide –
Dolphin Interconnect Solutions
Page 19
MXH932 PCIe x16 Edge Connector Pin-Out
The MXH932 Edge connector follows PCI Express CEM Specification, Rev. 3.0 section 6
–
Card Connector Specification. Signal names
are shown in Table 9. In host mode, the MXH932 is PCIe SIG compliant. The signals in
bold
are bi-directional, where the direction
depends on if the card is configured for host or target mode. In the case where the MXH932 is configured as a target adapter in an
expansion chassis, it will provide a 100 MHz, non-SSC, reference clock on the /REFCLK- pins. The shaded signals TDI and
TDO are normally tri-stated, but can be configured to provide an alternative 100 MHz, non-SSC, reference clock for PCIe expansion
chassis utilizing these pins instead.
Pin
Side B
Note
Side A
Note
1
+12
PRSNT1#
2
+12
+12
3
+12
+12
12
4
GND
GND
5
SMCLK
BMC
TCK
NC
6
SMDAT
BMC
TDI
O Ref clock
+
7
GND
TDO
O Ref clock -
8
+3,3V
PWR
TMS
NC
9
TRST#
NC
+3,3
PWR
10
+3,3V aux
Standby
PWR
+3,3
PWR
11
WAKE#
Wake up
PERST#
Reset
12
NC
GND
13
GND
Ref clock +
14
PERp0
REFCLK-
Ref clock -
15
PERn0
GND
16
GND
PETp0
17
PRSNT2#
PETn0
18
GND
GND
19
PERp1
NC
20
PERn1
GND
21
GND
PETp1
22
GND
PETn1
23
PERp2
GND
24
PERn2
GND
25
GND
PETp2
26
GND
PETn2
27
PERp3
GND
28
PERn3
GND
29
GND
PETp3
30
NC
PETn3
31
PRSNT2#
GND
32
GND
NC
33
PERp4
NC
34
PERn4
GND
35
GND
PETp4
36
GND
PETn4
37
PERp5
GND
38
PERn5
GND
39
GND
PETp5
40
GND
PETn5
41
PERp6
GND
42
PERn6
GND
43
GND
PETp6
Pin
Side B
Note
Side A
Note
44
GND
PETn6
45
PERp7
GND
46
PERn7
GND
47
GND
PETp7
48
PRSSNT2#
PETn7
49
GND
GND
50
PERp8
NC
51
PERn8
GND
52
GND
PETp8
53
GND
PETn8
54
PERp9
GND
55
PERn9
GND
56
GND
PETp9
57
GND
PETn9
58
PERp10
GND
59
PERn10
GND
60
GND
PETp10
61
GND
PETn10
62
PERp11
GND
63
PERn11
GND
64
GND
PETp11
65
GND
PETn11
66
PERp12
GND
67
PERn12
GND
68
GND
PETp12
69
GND
PETn12
70
PERp13
GND
71
PERn13
GND
72
GND
PETp13
73
GND
PETn13
74
PERp14
GND
75
PERn14
GND
76
GND
PETp14
77
GND
PETn14
78
PERp15
GND
79
PERn15
GND
80
GND
PETp15
81
PRSNT2#
PETn15
82
NC
GND
Table 9: PCIe Edge Connector Pin-Out