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參數(shù)資料
型號: ADSP-21020BG-100
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理
英文描述: 32/40-Bit IEEE Floating-Point DSP Microprocessor
中文描述: 48-BIT, 25 MHz, OTHER DSP, CPGA223
封裝: CERAMIC, PGA-223
文件頁數(shù): 15/32頁
文件大小: 425K
代理商: ADSP-21020BG-100
ADSP-21020
REV. C
–15–
Flags
K/B/T Grade K/B/T Grade B/T Grade
K Grade
20 MHz
Min
25 MHz
Min
30 MHz
33.3 MHz
Min Max
Frequency Dependency*
Min
Max
Parameter
Max
Max Min Max
Unit
Timing Requirement:
1
t
SFI
FLAG3-0
IN
Setup before CLKIN High
t
HFI
FLAG3-0
IN
Hold after CLKIN High
t
DWRFI
FLAG3-0
IN
Delay from
xRD
,
xWR
Low
t
HFIWR
FLAG3-0
IN
Hold after
xRD
,
xWR
Deasserted
19
0
16
0
14
0
13
0
19 + 5DT/16
ns
ns
12
8
5
3
12 + 7DT/16 ns
0
0
0
0
ns
Switching Characteristic:
t
DFO
FLAG3-0
OUT
Delay from CLKIN High
t
HFO
FLAG3-0
OUT
Hold after CLKIN High
t
DFOE
CLKIN High to FLAG3-0
OUT
Enable
t
DFOD
CLKIN High to FLAG3-0
OUT
Disable
24
24
24
24
ns
ns
ns
ns
5
1
5
1
5
1
5
1
24
24
24
24
NOTES
*DT = t
CK
– 50 ns
1
Flag inputs meeting these setup and hold times will affect conditional operations in the next instruction cycle. See the Hardware Configuration chapter of the
ADSP-21020 User’s Manual
for additional flag servicing information.
x = PM or DM.
CLKIN
t
DFOE
FLAG3-0
OUT
t
DFO
t
HFO
t
DFO
t
DFOD
FLAG OUTPUT
CLKIN
t
HFI
FLAG3-0
IN
FLAG INPUT
t
SFI
t
DWRFI
t
HFIWR
xRD, xWR
Figure 7. Flags
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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