參數(shù)資料
型號(hào): ADSP-2111BS-52
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號(hào)處理
英文描述: ADSP-2100 Family DSP Microcomputers
中文描述: 24-BIT, 13 MHz, OTHER DSP, PQFP100
封裝: METRIC, PLASTIC, QFP-100
文件頁數(shù): 48/64頁
文件大?。?/td> 666K
代理商: ADSP-2111BS-52
ADSP-21xx
–48–
REV. B
TIMNGPARAMETERS (ADSP-2103/2162/2164)
ME MORY RE AD
Frequency
Dependency
Min
10.24 MHz
Min
Parameter
Max
Max
Unit
Timing Requirement:
t
RDD
RD Low to Data Valid
t
AA
A0–A13, PMS, DMS, BMS to Data Valid
t
RDH
Data Hold from RD High
Switching Characteristic:
t
RP
RD Pulse Width
t
CRD
CLKOUT High to RD Low
t
ASR
A0–A13, PMS, DMS, BMS Setup before RD Low
t
RDA
A0–A13, PMS, DMS, BMS Hold after RD Deasserted
t
RWR
RD High to RD or WR Low
33.8
49.2
0.5t
CK
– 15 + w
0.75t
CK
– 24 + w
ns
ns
ns
0
43.8
19.4
12.4
14.4
38.8
0.5t
CK
– 5 + w
0.25t
CK
– 5
0.25t
CK
– 12
0.25t
CK
– 10
0.5t
CK
– 10
ns
ns
ns
ns
ns
34.4
0.25t
CK
+ 10
w = wait states
×
t
CK .
Figure 42. Memory Read
CLKOUT
A0 – A13
D
t
RDA
RD
WR
DMS, PMS
BMS
t
RWR
t
RP
t
ASR
t
CRD
t
RDD
t
AA
t
RDH
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