EP7311 Datasheet, PDF(14/54 Page) Cirrus Logic – HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE

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EP7311 Datasheet, PDF (14/54 Pages) Cirrus Logic – HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE

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EP7311

High-Performance, Low-Power System on Chip

SDRAM Load Mode Register Cycle

SDCLK

SDCS

SDRAS

SDCAS

ADDR

DATA

SDQM

SDMWE

tCSa

tRAa

tCAa

tADv

tMWa

tCSd

tRAd

tCAd

tADx

tMWd

Figure 3. SDRAM Load Mode Register Cycle Timing Measurement

Note:

1. Timings are shown with CAS latency = 2

2. The SDCLK signal may be phase shifted relative to the rest of the SDRAM control and data signals due to uneven loading.

Designers should take care to ensure that delays between SDRAM control and data signals are approximately equal

DS506PP1

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