Example calculation, Example calculation -11 – Altera Embedded Peripherals IP User Manual

Page 27

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Figure 2-5: Calculating the Maximum SDRAM Clock Lag

Figure 2-6: Calculating the Maximum SDRAM Clock Lead

Example Calculation

This section demonstrates a calculation of the signal window for a Micron MT48LC4M32B2-7 SDRAM

chip and design targeting the Stratix II EP2S60F672C5 device. This example uses a CAS latency (CL) of 3

cycles, and a clock frequency of 50 MHz. All SDRAM signals on the device are registered in I/O cells,

enabled with the Fast Input Register and Fast Output Register logic options in the Quartus II software.

UG-01085

2014.24.07

Example Calculation

2-11

SDRAM Controller Core

Altera Corporation

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