ep9307 Cirrus Logic, Inc., ep9307 Datasheet - Page 18
ep9307
Manufacturer Part Number
ep9307
Description
Arm9 Soc With Ethernet, Usb, Display, And Touchscreen
Manufacturer
Cirrus Logic, Inc.
Datasheet
1.EP9307.pdf
(49 pages)
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EP9307
ARM9 SOC with Ethernet, USB, Display and Touchscreen
SDRAM Auto Refresh Cycle
18
SDWEn
SDCLK
SDCSn
RASn
CASn
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
©
Copyright 2005 Cirrus Logic (All Rights Reserved)
t
d
7
t
clk_low
b
d
t
clk_high
t
clkrf
e
t
h
DS667PP4
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