BPI-R2 PCIE interface

Banana Pi support Mini PCIE interface ,so you can add many other module on it. so you can do many other function on it, such as AC AP ,and VOIP fxs/fxo E1/T1 and so on.

Mini PCIe specification:

The slot J2 is the PCIe interface. The pin definitions of this connector are shown as below.

DSI Pin Name	Default Function
J2-P01	PCIE0_WAKE
J2-P02	3.3V
J2-P03	NC
J2-P04	GND
J2-P05	NC
J2-P06	NC
J2-P07	PCIE0_CLKREQ
J2-P08	NC
J2-P09	GND
J2-P10	NC
J2-P11	PCIE_CK_N0
J2-P12	NC
J2-P13	PCIE_CK_P0
J2-P14	NC
J2-P15	GND
J2-P16	NC
J2-P17	NC
J2-P18	GND
J2-P19	NC
J2-P20	NC
J2-P21	GND
J2-P22	PERST
J2-P23	PCIE_RXN0
J2-P24	3.3V
J2-P25	PCIE_RXP0
J2-P26	GND
J2-P27	GND
J2-P28	NC
J2-P29	GND
J2-P30	NC
J2-P31	PCIE_TX_N0
J2-P32	NC
J2-P33	PCIE_TX_P0
J2-P34	GND
J2-P35	GND
J2-P36	NC
J2-P37	GND
J2-P38	NC
J2-P39	3.3V
J2-P40	GND
J2-P41	3.3V
J2-P42	NC
J2-P43	GND
J2-P44	NC
J2-P45	NC
J2-P46	NC
J2-P47	5V
J2-P48	NC
J2-P49	5V
J2-P50	GND
J2-P51	NC
J2-P52	3.3V

MT7623N chip support 3 pcie interface. BPI-R2 just have one standard pcie interface ,one for sata, one for USB 3.0

we can use PCIE 2 PIN define port， when you use this PIN , USB 3.0 will not work .

Note : it is standard PCIE interface ,Not support some USB 4G dongle via this interface.