2.10 Reserved Pins
The PEX 8647 has seventeen STRAP_RESERVED pins. They are for factory use only and should be set to know
logic states.
shows the list of these reserved pins and their connections in the RDK.
Table 2-4. Strap_Reserved Pin Connections
Name
Pin Location
Connections on PEX 8647-AA RDK
STRAP_RESERVED0
W3
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED1
Y1
Pull-down with a 1K ohm resistor
STRAP_RESERVED2
W1
Pull-down with a 1K ohm resistor
STRAP_RESERVED3
H3
Pull-down with a 1K ohm resistor
STRAP_RESERVED4
AD24
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED5
AF24
Pull-down with a zero ohm resistor
STRAP_RESERVED6
C4
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED7
G1
Pull-down with a zero ohm resistor
STRAP_RESERVED8
C23
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED9
B24
Pull-down with a zero ohm resistor
STRAP_RESERVED10#
A3
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED11
A2
Pull-down with a 1K ohm resistor
STRAP_RESERVED12
G6
Pull-down with a 1K ohm resistor
STRAP_RESERVED14
AC25
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED15
AE25
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED16
AE24
Pull-down with a zero ohm resistor
STRAP_RESERVED17#
H24
Set DIP switch to OFF (logic ‘HIGH’)
STRAP_RESERVED18#
AB2
Pull-up with a 4.7K ohm resistor
STRAP_RESERVED19#
B3
Pull-up with a 4.7K ohm resistor
PEX 8647-AA RDK Hardware Reference Manual, Version 1.2
Copyright © 2008 by PLX Technology, Inc. All rights reserved
11