DSK5510 EMIF CLock speed

MARK LO

In SPRU317K section 3.6, Figure 2 shows the DSP Clock Generator output is the "CPU Clock". This output goes to the CPU, peripherals & other modules. Is the EMIF run at the "CPU Clock" speed? The "CPU Clock" also goes into the CLKDIV and the output signal goes to the CLKOUT pin. How's this signal being used?

over 10 years ago

0 Steve Tsang over 10 years ago

TI__Mastermind 23785 points

When interfacing to synchronous memory, the CLKMEM is used as clock signal. the CLKMEM frequency is configured by MEMFREQ bits in EGCR register. Please refer to C5510A EMIF User's Guide, SPRU590, Table 5-2. As for CLKOUT pin, it is defined as a clock and spec'ed in Table 5-2 in data manual.
Regards.

0 MARK LO over 10 years ago in reply to Steve Tsang

Intellectual 320 points

I forgot to mention that I use the EMIF bus to interface to the external async SRAM not SDRAM. Therefore CLKMEM is not used, right?

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DSK5510 EMIF CLock speed