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SigC667x / SigC641x User Guide, Rev B7
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Signalogic 2012-2014
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2.5 SigC641x Processor and SDRAM Clock Rates
The processor clock rate for the particular module used is affixed to the flash memory chip
(marked U8 on the module silkscreen) which is located next to the module status LEDs (marked
D1-D16 on the module silkscreen) and is shown in Figure 2-10 below. The clock rate can also be
determined from the part markings on the C6415T processors (e.g. 7E3 for 720 MHz and 1GHZ
for 1 GHz). The SDRAM clock rate is the processor clock rate divided by 6 which would be 120
MHz for 720 MHz processors and 166.67 MHz for 1 GHz processors.
Figure 2-10, SigC641x processor clock rate module labeling
