ep9315 Cirrus Logic, Inc., ep9315 Datasheet - Page 22
![no-image](/images/manufacturer_photos/0/1/142/cirrus_logic__inc__sml.jpg)
ep9315
Manufacturer Part Number
ep9315
Description
Enhanced Universal Platform System-on-chip Processor
Manufacturer
Cirrus Logic, Inc.
Datasheet
1.EP9315.pdf
(64 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ep9315-CBZ
Manufacturer:
CIRRUS
Quantity:
20 000
Company:
Part Number:
ep9315-IBZ
Manufacturer:
CIRRUS
Quantity:
13
Company:
Part Number:
ep9315-IBZ
Manufacturer:
CIRRUS
Quantity:
347
Company:
Part Number:
ep9315CBZ
Manufacturer:
INF
Quantity:
2 754
Part Number:
ep9315CBZ
Manufacturer:
CIRRUS
Quantity:
20 000
EP9315
Enhanced Universal Platform SOC Processor
Static Memory 32-bit Write on 8-bit External Bus
22
AD setup to WRn assert time
WRn/DQMn deassert to AD transition time
AD hold from WRn deassert time
CSn hold from WRn deassert time
CSn to WRn assert delay time
WRn assert time
WRn deassert time
CSn to DQMn assert delay time
DQMn assert time
DQMn deassert time
WRn / DQMn deassert to DA transition time
WRn / DQMn assert to DA valid time
DQMn
WAIT
WRn
RDn
CSn
AD
DA
Parameter
t
ADs
t
DQMd
t
WRd
Figure 9. Static Memory Multiple Word Write 8-bit Cycle Timing Measurement
t
DAV
t
t
WRpwL
DQMpwL
©
Copyright 2005 Cirrus Logic (All Rights Reserved)
t
t
WRpwH
DQMpwH
t
DAh
Symbol
t
t
t
t
DQMpwH
ADd
t
DQMpwL
WRpwH
t
WRpwL
t
DQMd
t
t
t
t
t
t
WRd
ADs
ADd
ADh
CSh
DAh
DAV
t
DAV
t
t
WRpwL
DQMpwL
t
t
WRpwH
DQMpwH
t
t
HCLK
HCLK
t
Min
HCLK
7
-
-
-
-
-
-
-
-
t
DAh
− 3
× 2
t
ADd
t
DAV
t
t
WRpwL
DQMpwL
t
t
HCLK
HCLK
t
t
WRpwH
DQMpwH
t
HCLK
× (WST1 + 1)
× (WST1 + 1)
Typ
-
-
-
-
-
-
-
-
-
t
DAh
× 2
t
ADd
t
DAV
t
CSh
t
ADh
(t
(t
HCLK
HCLK
t
HCLK
Max
× 2) + 14
2
1
8
× 2) + 7
-
-
-
-
-
-
t
DAh
+ 6
DS638PP4
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns