PEX 8619BA Base Board RDK Hardware Reference Manual – Version 1.0
Copyright © 2008 by PLX Technology, Inc. All rights reserved
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4.2.3
Serial Hot-Plug Controller Attention Button (S3)
The RDK provides a manual switch (S3) for attention button to the Serial Hot-Plug circuit. When pushed and
released, the switch generates an active low pulse to the Attention Button Input to the IO Expender U71 which will
generate interrupt signal, INT#, to the PEX 8619 for attention (see section
4.3
Connectors and Headers
4.3.1
ATX Peripheral Power Connectors (J1-J4 & J7-J8)
The RDK has six ATX Peripheral Power Connectors.
Table 9. Signal Names of J1-J4 & J7-J8
Pin #
Signal Name
1 12V
2 GND
3 GND
4 5V
4.3.2
x4 PCI Express External Cable Connectors (J5 & J6)
The RDK has two x4 PCI Express External Cable Connectors.
Table 10. Signal Names of J5 and J6
Pin #
Signal Name
Pin #
Signal Name
A1 GND B1 GND
A2 PETp0 B2 PERp0
A3 PETn0 B3 PERn0
A4 GND B4 GND
A5 GND B5 PERp1
A6 PETp1 B6 PERn1
A7 PETn1 B7
GND
A8 GND
B8
PERp2
A9
PETp2
B9
PERn2
A10 PETn2 B10
GND
A11 GND B11 PERp3
A12 PETp3 B12 PERn3
A13 PETn3 B13
GND
A14 GND B14 PWR
A15 CREFCLKp B15
PWR
A16 CREFCLKn B16
PWR_RTN
A17 GND B17 PWR_RTN
A18 SB_RTN B18 CWAKE#
A19 CPWRON B19 CPERST#
