ep9307 Cirrus Logic, Inc., ep9307 Datasheet - Page 16

• Manufacturer Part Number: ep9307
• Description: Arm9 Soc With Ethernet, Usb, Display, And Touchscreen
• Manufacturer: Cirrus Logic, Inc.

EP9307
ARM9 SOC with Ethernet, USB, Display and Touchscreen
SDRAM Burst Read Cycle
16
SDWEn
SDCLK
SDCSn
DQMn
DQMn
RASn
CASn
CL = 2
CL = 3
CL = 2
CL = 3
AD
DA
DA
t
t
d
d
t
DQd
©
Figure 3. SDRAM Burst Read Cycle Timing Measurement
Copyright 2005 Cirrus Logic (All Rights Reserved)
t
h
t
DAs
t
clk_low
n
t
t
DAs
DAh
n
n + 1
t
DAh
t
clk_high
t
clkrf
t
DQh
n + 1
n + 2
n + 3
n + 2
t
DQh
n + 3
DS667PP4