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MVME2500 Installation and Use (6806800L01H)
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7.7.2 Real Time Clock Input
The RTC clock input is driven by a 1 MHz clock generated by the FPGA. This provides a fixed
clock reference for the QorIQ P20x0 PIC timers which the software can use as a known time
reference.
7.7.3 Local Bus Controller Clock Divisor
The local bus controller (LBC) clock output is connected to the FPGA for LBC bus transaction. It
is also the source of 1 MHz (CPU_RTC) and FPGA tick timers.