9
INTEGRATION GUIDE
Pin
Description
Legend
Direction on Radio
1
WAKE#
Open drain, active low signal. When the card supports
wakeup, this signal is used to request that the system
return from a sleep/suspended state to service a
function-intiated event.
Input/Output
3
COEX1
Chip Power down control. Connected to CHP_PWD_L
on the QCA 9898. Must be de-asserted after both 3.3
V power and 1.1 V power become stable.
5
Unused
7
CLKREQ#
Reference clock request signal
Output
9
GND
GND
11
REFCLK-
PCI Express differential reference clock (100 MHz)
Input
13
PCI Express differential reference clock (100 MHz)
Input
15
GND
GND
Mechanical Key
17
Unused
19
Unused
21
GND
GND
23
PERn0
PCI Express Rx- (Rx WRT host)
Output
25
PERp0
PCI Express Rx+ (Rx WRT host)
Output
27
GND
GND
29
GND
GND
31
PETn0
PCI Express Tx- (Tx WRT host)
Input
33
PETp0
PCI Express Tx+ (Tx WRT host)
Input
35
GND
GND
37
GND
PCIe Lane 2 GND
GND
39
Unused
41
Unused
43
GND
PCIe Lane 2 GND
GND
45
Reserved
47
Reserved
49
Reserved
51
Reserved
Table 1
. Mini PCIe connector pinout for the odd pins
