EP9307-ER(2005) View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

EP9307-ER
(Rev.:2005)

ARM9 SOC with Ethernet, USB, Display, and Touchscreen

Cirrus Logic 

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

©Copyright 2005 Cirrus Logic (All Rights Reserved)

DS667PP4

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