參數(shù)資料
型號(hào)： ADSP-2100A
廠商： Analog Devices, Inc.
英文描述： ADSP-2100 Family DSP Microcomputers
中文描述： 的ADSP - 2100系列DSP的微機(jī)
文件頁數(shù)： 32/64頁
文件大?。?/td> 668K
代理商： ADSP-2100A
ADSP-21xx
–32–
REV. B
Frequency
Dependency
13 MHz
Min Max Min
13.824 MHz 16.67 MHz
Max
20 MHz
Min Max Min Max Min
25 MHz
Parameter
Min
Max
Max
Unit
Timing Requirement:
t
BH
BR Hold after CLKOUT High
1
t
BS
BR Setup before CLKOUT Low
1
39.2
Switching Characteristic:
t
SD
CLKOUT High to DMS,
PMS, BMS, RD, WR Disable
t
SDB
DMS, PMS, BMS, RD, WR
Disable to BG Low
t
SE
BG High to DMS, PMS,
BMS, RD, WR Enable
t
SEC
DMS, PMS, BMS, RD, WR
Enable to CLKOUT High
24.2
23.1
38.1
20
35
17.5
32.5
15
30
0.25t
CK
+ 5
0.25t
CK
+ 20
ns
ns
39.2
38.1
35
32.5
30
0.25t
CK
+ 20 ns
0
0
0
0
0
0
ns
0
0
0
0
0
0
ns
9.2
8.1
5
2.5
1.5
2
0.25t
CK
– 10
2
ns
NOTES
1
If BR meets the t
and t
setup/hold requirements, it will be recognized in the current processor cycle; otherwise it is recognized in the following cycle. BR requires
a pulse width greater than 10 ns.
2
For 25 MHz only the minimum frequency dependency formula for t
SEC
= (0.25t
CK
– 8.5).
Section 10.2.4, “Bus Request/Grant,” on page 212 of the
ADSP-2100 Family User’s Manual (1st Edition, 1993)
states that “When BR is recognized, the processor
responds immediately by asserting BG during the same cycle.” This is incorrect for the current versions of all ADSP-21xx processors: BG is asserted in the cycle after
BR is recognized. No external synchronization circuit is needed when BR is generated as an asynchronous signal.
TIMNGPARAMETERS (ADSP-2101/2105/2111/2115/2161/2163)
BUS RE QUE ST /GRANT
CLKOUT
PMS
,
DMS
BMS
,
RD
WR
t
BS
BR
BG
CLKOUT
t
SD
t
SDB
t
SE
t
SEC
t
BH
Figure 31. Bus Request/Grant
相關(guān)PDF資料
PDF描述
ADSP-2101 16-Bit Fixed-Point DSP(16位定點(diǎn)型DSP)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADSP-2100AJG 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor
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ADSP-2100AKP 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor
ADSP-2100ASG 制造商:AD 制造商全稱:Analog Devices 功能描述:12.5 MIPS DSP Microprocessor
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