參數(shù)資料
型號: ADSP-21mod970
廠商: Analog Devices, Inc.
英文描述: Multi-Port Internet Gateway Processor(多口網(wǎng)關(guān)處理器)
中文描述: 多端口Internet網(wǎng)關(guān)處理器(多口網(wǎng)關(guān)處理器)
文件頁數(shù): 38/50頁
文件大?。?/td> 980K
代理商: ADSP-21MOD970
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ADSP-21mod970 Preliminary Data Sheet
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Data
RD
Technca
TIMING PARAMETERS ADSP-21mod970
Memory Write
w = wait states x t
CK
xMS = PMS, DMS, CMS, IOMS, BMS
Figure 22 Memory Write
Parameter
Memory Write
Switching Characteristics:
t
DW
t
DH
t
WP
t
WDE
t
ASW
t
DDR
t
CWR
t
AW
t
WRA
t
WWR
Min
Max
Unit
Data Setup before WR High
Data Hold after WR High
WR Pulse Width
WR Low to Data Enabled
A0-A13, xMS Setup before WR Low
Data Disable before WR or RD Low
CLKOUT High to WR Low
A0-A13, xMS, Setup before WR Deasserted
A0-A13, xMS Hold after WR Deasserted
WR High to RD or WR Low
0.5t
CK
– 7+ w
0.25t
CK
– 2
0.5t
CK
– 5 + w
0
0.25t
CK
– 6
0.25t
CK
– 7
0.25t
CK
– 5
0.75t
CK
– 9 + w
0.25t
CK
– 3
0.5t
CK
– 5
0.25 t
CK
+ 7
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CLKOUT
A0-A13
D
WP
AW
t
CWR
t
DH
t
WDE
t
DW
t
ASW
t
WWR
WRA
t
DDR
,
DMS
,
PMS,
WR
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