EP9307 Datasheet, PDF (20/48 Pages) Cirrus Logic – ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN

EP9307
ARM9 SOC with Ethernet, USB, Display and Touchscreen
Static Memory Single Word Write Cycle
Parameter
AD setup to WRn assert time
AD hold from WRn deassert time
WRn deassert to CSn deassert time
CSn to WRn assert delay time
WRn assert time
CSn to DQMn assert delay time
WRn deassert to DQMn deassert time
WRn deassert to DA transition time
Symbol
t_ADs
t_ADh
t_CSh
t_WRd
t_WRpw
t_DQMd
t_DQMh
t_DAh
Min
-
-
-
-
-
-
-
-
Typ
t_HCLK
t_HCLK × 3
t_HCLK
0
t_HCLK × (WST1 + 1)
0
0
t_HCLK
Max
-
-
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
AD
CSn
WRn
RDn
DQMn
DA
WAIT
t_ADs
t_WRd
t_WRpw
t_CSh
t_ADh
t_DQMd
t_DQMh
t_DAh
Figure 7. Static Memory Single Word Write Cycle Timing Measurement
20
©Copyright 2004 Cirrus Logic (All Rights Reserved)
DS667PP3