Functional Description
MEN Mikro Elektronik GmbH
61
20BL50S00 E2 – 2014-12-10
Table 18.
Signal mnemonics of 52-pin PCI Express Mini Card connector
Signal
Direction
Function
Power
GND
-
Ground
+3.3Vaux
out
3.3V source
1.5V
out
1.5V source
SIM card
UIM_PWR
in
microSIM card power
UIM_DATA
in/out
microSIM card data
UIM_CLK
in
microSIM card clock
UIM_RST
in
microSIM card reset
UIM_VPP
in
not connected
PCI
Express
REFCLK-/
out
PCI Express differential reference
clock
PERn0/PERp0
in
PCI Express receive signals
PETn0/PETp0
out
PCI Express transmit signals
Auxiliary
Signals
CLKREQ#
in
Clock request
PERST#
out
Reset for the Mini Card
W_DISABLE#
out
Wireless disable
WAKE#
in
Wake signal
SMB_CLK
out
System management bus clock
SMB_DATA
in/out
System management bus data
USB
USB_D-
in/out
USB line
USB_D+
in/out
USB line
Communi
cations -
specific
signals
LED_WWAN#
in
not connected
LED_WLAN#
in
not connected
LED_WPAN#
in
not connected
Please refer to the PCI Express Mini Card Specification for further details. See
Chapter 8.1 Literature and Web Resources on page 113
.
