參數(shù)資料
型號(hào)： 2184
廠商： Analog Devices, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： DSP Microcomputer
中文描述： DSP微機(jī)
文件頁數(shù)： 24/31頁
文件大?。?/td> 213K
代理商： 2184
ADSP-2184
TIMING PARAMETERS
–24–
REV. 0
Parameter
Min
Max
Unit
IDMA Read, Long Read Cycle
Timing Requirements
:
t
IKR
t
IRK
IACK
Low before Start of Read
1
End of Read after
IACK
Low
0
2
ns
ns
Switching Characteristics
:
t
IKHR
t
IKDS
t
IKDH
t
IKDD
t
IRDE
t
IRDV
t
IRDH1
t
IRDH2
IACK
High after Start of Read
1
IAD15–0 Data Setup before
IACK
Low
IAD15–0 Data Hold after End of Read
2
IAD15–0 Data Disabled after End of Read
2
IAD15–0 Previous Data Enabled after Start of Read
IAD15–0 Previous Data Valid after Start of Read
IAD15–0 Previous Data Hold after Start of Read (DM/PM1)
3
IAD15–0 Previous Data Hold after Start of Read (PM2)
4
15
ns
ns
ns
ns
ns
ns
ns
ns
0.5 t
CK
– 10
0
10
0
15
2 t
CK
– 5
t
CK
– 5
NOTES
1
Start of Read =
IS
Low and
IRD
Low.
2
End of Read =
IS
High or
IRD
High.
3
DM read or first half of PM read.
4
Second half of PM read.
t
IRK
t
IKR
PREVIOUS
DATA
READ
DATA
t
IKHR
t
IKDS
t
IRDV
t
IRDH
t
IKDD
t
IRDE
t
IKDH
IAD 15–0
IACK
IS
IRD
Figure 18. IDMA Read, Long Read Cycle
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