PCA3 User Manual

From Terasic Wiki

Pin Numbers	Side B		Side A
	Name	Description	Name	Description
1	NC	NC	PRSNT1n	Hot-Plug presence detect
2	NC	NC	NC	NC
3	NC	NC	NC	NC
4	GND	Ground	GND	Ground
5	SMCLK	System Clock	NC	NC
6	SMDAT	System Data Line	NC	NC
7	GND	Ground	NC	NC
8	VCC3P3	3.3V Power	NC	NC
9	NC	NC	VCC3P3	3.3V Power
10	3.3VAUX	3.3V Auxiliary Power	VCC3P3	3.3V Power
11	WAKE	NC	PERSTn	Fundamental Reset
Mechanical Key
12	RSVD	Reserved	GND	Ground
13	GND	Ground	REFCLK+	Reference clock (differential pair)
14	PETp0	Transmitter differential pair,Lane 0	REFCLK-
15	PETn0		GND	Ground
16	GND	Ground	PERp0	Receiver differential pair, Lane 0
17	PRSNT2n	Hot-Plug presence detect	PERn0
18	GND	Ground	GND	Ground
19	PETp1	Transmitter differential pair,Lane 1	RSVD	Reserved
20	PETn1		GND	Ground
21	GND	Ground	PERp1	Receiver differential pair, Lane 1
22	GND	Ground	PERn1
23	PETp2	Transmitter differential pair,Lane 2	GND	Ground
24	PETn2		GND	Ground
25	GND	Ground	PERp2	Receiver differential pair, Lane 2
26	GND	Ground	PERn2
27	PETp3	Transmitter differential pair,Lane 3	GND	Ground
28	PETn3		GND	Ground
29	GND	Ground	PERp3	Receiver differential pair, Lane 3
30	RSVD	Reserved	PERn3
31	PRSNT2n	Hot-Plug presence detect	GND	Ground
32	GND	Ground	RSVD	Reserved