EP9307 Datasheet, PDF (23/48 Pages) Cirrus Logic – ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN

EP9307
ARM9 SOC with Ethernet, USB, Display and Touchscreen
Static Memory 32-bit Read on 16-bit External Bus
Parameter
Symbol
Min
AD setup to RDn assert time
t_ADs
-
RDn assert to AD transition time
t_ADd1
-
AD transition to RDn deassert time
t_ADd2
-
AD hold from RDn deassert time
t_ADh
-
RDn assert time
t_RDpwL
-
CSn to RDn assert delay time
t_RDd
-
CSn to RDn deassert delay time
t_RDh
-
CSn to DQMn assert delay time
t_DQMd
-
CSn to DQMn deassert delay time
t_DQMh
-
DA to ADsetup time
t_DAs1
-
DA to RDn setup time
t_DAs2
-
AD transition to DA transition hold time
t_DAh1
-
RDn deassert to DA transition hold time
t_DAh2
-
Typ
t_HCLK
t_HCLK × (WST1 + 1)
t_HCLK × (WST1 + 2)
t_HCLK × 2
t_HCLK × (2 × WST1 + 3)
0
0
0
0
6
t_HCLK + 6
0
0
Max
-
-
-
-
-
-
-
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t_ADs
AD
CSn
WRn
RDn
DQMn
DA
WAIT
t_ADd1
t_ADd2
t_ADh
t_RDd
t_DQMd
t_RDpwl
t_DAs1
t_DQMh
t_DAh1 t_DAs2
t_RDh
t_DAh2
Figure 10. Static Memory Multiple Word Read 16 Bit Cycle Timing Measurement
DS667PP3
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