參數(shù)資料
型號(hào): EP9312-IB
廠(chǎng)商: CIRRUS LOGIC INC
元件分類(lèi): 微控制器/微處理器
英文描述: Universal Platform System-on-chip Processor
中文描述: 32-BIT, 184 MHz, RISC PROCESSOR, PBGA352
封裝: 27 X 27 MM, PLASTIC, BGA-352
文件頁(yè)數(shù): 21/62頁(yè)
文件大?。?/td> 884K
代理商: EP9312-IB
DS515PP7
Copyright 2005 Cirrus Logic (All Rights Reserved)
21
EP9312
Universal Platform SOC Processor
Static Memory 32-bit Read on 8-bit External Bus
Parameter
Symbol
Min
Typ
Max
Unit
AD setup to CSn assert time
t
ADs
t
HCLK
-
-
ns
CSn assert to Address transition time
t
AD1
-
t
HCLK
×
(WST1 + 1)
-
ns
Address assert time
t
AD2
-
t
HCLK
×
(WST1 + 1)
-
ns
AD transition to CSn deassert time
t
AD3
-
t
HCLK
×
(WST1 + 2)
-
ns
AD hold from CSn deassert time
t
ADh
t
HCLK
-
-
ns
RDn assert time
t
RDpwL
-
t
HCLK
×
(4
×
WST1 + 5)
-
ns
CSn to RDn delay time
t
RDd
-
-
3
ns
CSn assert to DQMn assert delay time
t
DQMd
-
-
1
ns
DA setup to AD transition time
t
DAs1
15
-
-
ns
DA setup to RDn deassert time
t
DAs2
t
HCLK
+
12
-
-
ns
DA hold from AD transition time
t
DAh1
0
-
-
ns
DA hold from RDn deassert time
t
DAh2
0
-
-
ns
Figure 8. Static Memory Multiple Word Read 8-bit Cycle Timing Measurement
1
CSn
WRn
RDn
DA
AD
DQMn
t
ADs
t
AD1
t
AD2
t
AD2
t
DAs1
t
RDd
t
DAh1
t
DAh1
t
DAh1
t
DAs1
t
DAs1
t
DAs2
t
DAh2
t
ADh
WAIT
t
RDd
t
DQMd
t
AD3
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