參數(shù)資料
型號: ADSP21020
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: 32/40 IEEE浮點(diǎn)DSP微處理器
文件頁數(shù): 14/32頁
文件大?。?/td> 425K
代理商: ADSP21020
ADSP-21020
REV. C
–14–
Interrupts
K/B/T Grade K/B/T Grade B/T Grade
K Grade
20 MHz
Min
25 MHz
Min
30 MHz
33.3 MHz Frequency Dependency*
Max Min Max Min
Parameter
Max
Max Min
Max
Unit
Timing Requirement:
t
SIR
IRQ
3-0 Setup before CLKIN High 38
t
HIR
IRQ
3-0 Hold after CLKIN High
t
IPW
IRQ
3-0 Pulse Width
31
0
45
25
0
38
23
0
35
38 + 3DT/4
ns
0
55
ns
t
CK
+ 5
ns
NOTE
*DT = t
CK
– 50 ns
Meeting setup and hold guarantees interrupts will be latched in that cycle. Meeting the pulse width is not necessary if the setup and hold is met. Likewise, meeting the
setup and hold is not necessary if the pulse width is met. See the Hardware Configuration chapter of the
ADSP-21020 User’s Manual
for interrupt servicing informa-
tion.
CLKIN
t
SIR
IRQ3-0
t
HIR
t
IPW
Figure 5. Interrupts
Timer
K/B/T Grade
K/B/T Grade
B/T Grade
K Grade
20 MHz
Min
25 MHz
Min
30 MHz
Min
33.3 MHz Frequency Dependency*
Max Min
Max
Min
Parameter
Max
Max
Max
Unit
Switching Characteristic:
t
DTEX
CLKIN High to TIMEXP
24
24
24
24
ns
NOTE
*DT = t
CK
– 50 ns
CLKIN
t
DTEX
TIMEXP
t
DTEX
Figure 6. TIMEXP
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參數(shù)描述
ADSP-21020 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
ADSP-21020BG-100 制造商:AD 制造商全稱:Analog Devices 功能描述:32/40-Bit IEEE Floating-Point DSP Microprocessor
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ADSP-21020BG-80 制造商:AD 制造商全稱:Analog Devices 功能描述:32/40-Bit IEEE Floating-Point DSP Microprocessor
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