WCBN814A User Manual 
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40 
RESERVED  -    NC 
41 
PETp0  I/O 
PCIe TX differential signal shall be connected to 
receiver differential pair on the system board 
YES 
RESERVED  -    NC 
43 
PETn0  I/O 
PCIe TX differential signal shall be connected to 
receiver differential pair on the system board 
YES 
44 
I/O  Coexistence between WiFi+BT and WWAN  NC 
GND  G  Ground  YES 
46 
I/O  Coexistence between WiFi+BT and WWAN  NC 
PCIe reference clock signals(100MHz) 
48 
I/O  Coexistence between WiFi+BT and WWAN  NC 
PCIe reference clock signals(100MHz) 
50 
SUSCLK(32kHz)  I 
Suspend Clock is a 32.768KHz clock supply input 
that is provided by platform to enable WLAN to 
enter reduce power consumption mode. Optional 
NC 
51 
GND  G  Ground  YES 
52 
PERST#  I 
PCIe Reset is a functional reset to WLAN; Active 
Low 
YES 
53 
CLKREQ#  I/O 
Clock request is a reference clock request signal. 
An external pull-up resistor on the platform is 
YES 
Active Low to disable BT radio operation 
55 
PEWAKE#  O 
Request to service a function initiated wake event. 
An external pull-up resistor on the platform is 
YES 
56 
WL_EN#  I  Active Low to disable WLAN radio operation  YES 
58 
I2C DATA  I/O  I2C Data; Open Drain with pull up on platform  NC 
60 
I2C CLK  I  I2C clock input from host  NC 
62 
ALERT#  O  IRQ line to host processor; Active low  NC 
64-68
RESERVED      NC 
70-71
RESERVED      NC 
73 
RESERVED      NC 
75 
GND  G  Ground  YES