Connecting the PCI Express Mini Card
Page 14
2.3
PCI Express Mini Card Interface
The PX1N connects to the carrier board via a PCI Express Mini Card connector.
PCI Express
®
Mini Cards use either a single PCI Express lane (x1) or a USB connection;
the PX1N only supports the USB 2.0 connection. It is equipped with one 52-pin standard
PCI Express Mini Card connector. The following standard signals are supported (signal
directions according to PCI Express Mini Card standard):
Table 5.
Pin assignment of PCI Express Mini Card connector
2
+3.3V
1
WAKE#
4
GND
3
reserved
6
1.5V
5
reserved
8
UIM_PWR
7
CLKREQ#
10
UIM_DATA
9
GND
12
UIM_CLK
11
REFCLK-
14
UIM_RST
13
16
UIM_VPP
15
GND
18
GND
17
reserved
20
W_DISABLE#
19
reserved
22
PERST#
21
GND
24
+3.3Vaux
23
PERn0
26
GND
25
PERp0
28
+1.5V
27
GND
30
SMB_CLK_MINI
29
GND
32
SMB_DATA_MINI
31
PETn0
34
GND
33
PETp0
36
USB_D-
35
GND
38
USB_D+
37
GND
40
GND
39
+3.3Vaux
42
LED_WWAN#
41
+3.3Vaux
44
LED_WLAN#
43
GND
46
LED_WPAN#
45
FWD
48
+1.5V
47
WHEELTICK
50
GND
49
TIMEPULSE
52
+3.3Vaux
51
W_DISABLE[2]
1
2
51
52
