EP9307 Datasheet, PDF (19/48 Pages) Cirrus Logic – ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN

Static Memory Single Word Read Cycle
Parameter
AD setup to RDn assert time
AD hold from RDn deassert time
RDn assert time
CSn assert to RDn assert delay time
CSn deassert to RDn deassert delay time
CSn assert to DQMn assert delay time
CSn deassert to DQMn deassert delay time
DA setup to RDn deassert time
DA hold from RDn deassert time
Symbol
t_ADs
t_ADh
t_RDpw
t_RDd
t_RDh
t_DQMd
t_DQMh
t_DAs
t_DAh
See “Timing Conditions” on page 14 for definition of HCLK.
EP9307
ARM9 SOC with Ethernet, USB, Display and Touchscreen
Min
-
-
-
-
-
-
-
-
0
Typ
5
t_HCLK × 2
t_HCLK × (WST1 + 2)
0
0
0
0
t_HCLK + 6
0
Max
-
-
t_HCLK × 33
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
AD
CSn
W Rn
RDn
DQ M n
DA
W AIT
t_ADs
t _{AD h}
t_RDd1
t_{D QMd1}
t_{R D pw}
t_DAs
t_{R Dhd2}
t_{D QMhd2}
t_DAh
Figure 6. Static Memory Single Word Read Cycle Timing Measurement
DS667PP3
©Copyright 2004 Cirrus Logic (All Rights Reserved)
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