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E T X C P U M o d u l e
2.7 SPI Flash Programming Connector (Optional) (CN3)
Pin
Signal
1
+3.3V
3
SPI_CS#0
5
SPI_SO
2.8 ETX Connector (X1A)
Pin
Signal
1
GND
3
PCICLK3
5
GND
7
PCICLK1
9
REQ3#
11
GNT2#
13
REQ2#
15
REQ1#
17
GNT0#
19
VCC
DREQ2
21
/SERIRQ
23
AD0
25
AD1
27
AD4
29
AD6
31
CBE0#
33
AD8
35
GND
37
AD10
Chapter 2 Quick Installation Guide
Pin
Signal
2
GND
4
PCICLK4
6
GND
8
PCICLK2
10
GNT3#
12
3V
14
GNT1#
16
3V
18
NC
20
VCC
22
REQ0#
24
3V
26
AD2
28
AD3
30
AD5
32
AD7
34
AD9
36
GND
38
LIN_L
2-6
E T X - 9 4 5 G S E
Pin
Signal
2
GND
4
SPI_CLK
6
SPI_SI
Pin
Signal
51
VCC
53
PAR
55
PERR#
57
PCI_PME
59
PLOCK#
61
TRDY#
63
IRDY#
65
FRAME#
67
GND
69
AD16
71
AD17
73
AD19
75
AD20
77
AD22
79
AD23
81
AD24
83
VCC
85
AD25
87
AD28
Pin
Signal
52
VCC
54
SERR#
56
NC
58
USB2N
60
DEVSEL#
62
USB3N
64
STOP#
66
USB2P
68
GND
70
CBE2#
72
USB3P
74
AD18
76
USB0N
78
AD21
80
USB1N
82
CBE3#
84
VCC
86
AD26
88
USB0P
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