EP9307 Ver la hoja de datos (PDF) - Unspecified

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EP9307

ARM9 SOC with Ethernet, USB, Display and Touchscreen

Unspecified 

EP9307

ARM9 SOC with Ethernet, USB, Display and Touchscreen

SDRAM Auto Refresh Cycle

SDCLK

SDCSn

tclk_low

td

7

b

tclk_high

tclkrf

th

d

e

RASn

CASn

SDWEn

Note: Chip select shown as bus to illustrate multiple devices being put into auto refresh in one access

Figure 5. SDRAM Auto Refresh Cycle Timing Measurement

18

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