P&E Microcomputer Systems XPC560S EVB User Manual - page 51
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xPC560S EVB User Manual
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J11 – External clock source enable
The xPC560S Mini-Module contains a footprint for an SMA connector, which
can be used to provide an external clock source to the system.
3+4 (default)
The MPC560xS “XTAL” signal is connected to the
crystal clock source on the xPC560S Mini‐Module
Jumper Setting
Effect
On
The MPC560xS “EXTAL” signal is connected to the
SMA connector on the xPC560S Mini‐Module
Off (default)
The SMA connector on the xPC560S Mini‐Module is
disconnected from the processor