14
5 Pinouts and Signal Descriptions
Crossed out signals are not supported.
3V (3.3 V ±5%) is generated on board. Pins may be used to power devices on the
carrier board up to a maximum load of 500 mA.
Do not connect the 3V pin to external 3.3V supply power.
5.1 X1: PCI Bus, USB, Audio
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
1 GND
2 GND
51
VCC
52 VCC
3 PCICLK3 4 PCICLK4
53
PAR
54 SERR#
5 GND
6 GND
55
GPERR# 56 RESERVED
7 PCICLK1 8 PCICLK2
57
PME#
58 USB2-
9 REQ3#
10 GNT3#
59
LOCK#
60 DEVSEL#
11 GNT2#
12 3V
61 TRDY#
62 USB3-
13 REQ2#
14 GNT1#
63 IRDY#
64 STOP#
15 REQ1#
16 3V
65 FRAME#
66 USB2+
17 GNT0#
18 RESERVED
67 GND
68 GND
19 VCC
20 VCC
69 AD16
70 CBE2#
21 SERIRQ
22 REQ0#
71 AD17
72 USB3+
23 AD0
24 3V
73 AD19
74 AD18
25 AD1
26 AD2
75 AD20
76 USB0-
27 AD4
28 AD3
77 AD22
78 AD21
29 AD6
30 AD5
79 AD23
80 USB1-
31 CBE0#
32 AD7
81 AD24
82 CBE3#
33 AD8
34 AD9
83 VCC
84 VCC
35 GND
36 GND
85 AD25
86 AD26
37 AD10
38 AUXAL
87 AD28
88 USB0+
39 AD11
40 MIC
89 AD27
90 AD29
41 AD12
42 AUXAR
91 AD30
92 USB1
43 AD13
44 ASVCC
93 PCIRST# 94 AD31
45 AD14
46 SNDL
95 INTC#
96 INTD#
47 AD15
48 ASGND
97 INTA#
98 INTB#
49 CBE1#
50 SNDR
99 GND
100 GND
