ep9307 Cirrus Logic, Inc., ep9307 Datasheet - Page 25

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

Static Memory Burst Read Cycle
DS667PP4
CSn assert to Address 1 transition time
Address assert time
AD transition to CSn deassert time
AD hold from CSn deassert time
CSn to RDn delay time
CSn to DQMn assert delay time
DA setup to AD transition time
DA setup to CSn deassert time
DA hold from AD transition time
DA hold from RDn deassert time
DQMn
WAIT
Note:
WRn
CSn
RDn
AD
DA
These characteristics are valid when the Page Mode Enable (Burst Mode) bit is set. See the User's Guide for details.
t
ADs
t
DQMd
Parameter
t
RDd
t
Figure 12. Static Memory Burst Read Cycle Timing Measurement
ADd1
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Copyright 2005 Cirrus Logic (All Rights Reserved)
t
DAs1
Symbol
t
t
t
t
t
t
t
t
DQMd
t
t
ADd1
ADd2
ADd3
DAs1
DAs2
DAh1
DAh2
RDd
ADh
t
DAh1
t
ADd2
t
t
HCLK
DAs1
t
Min
HCLK
15
0
0
-
-
-
-
-
ARM9 SOC with Ethernet, USB, Display and Touchscreen
+ 12
t
DAh1
t
ADd2
t
t
t
HCLK
HCLK
HCLK
t
DAs1
× (WST1 + 1)
× (WST2 + 1)
× (WST1 + 2)
Typ
-
-
-
-
-
-
-
t
t
ADd3
DAh1
t
DAs2
Max
3
1
-
-
-
-
-
-
-
-
t
DAh2
EP9307
Unit
t
ADh
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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