參數(shù)資料
型號: ADSP-2181BS-115
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理
英文描述: DSP Microcomputer
中文描述: 24-BIT, 14.4 MHz, OTHER DSP, PQFP128
封裝: PLASTIC, QFP-128
文件頁數(shù): 21/32頁
文件大?。?/td> 290K
代理商: ADSP-2181BS-115
ADSP-2181
–21–
REV. D
Parameter
Min
Max
Unit
IDMA Write, Short Write Cycle
Timing Requirements
:
t
IK W
t
IWP
t
IDSU
t
IDH
IACK
Low before Start of Write
1
Duration of Write
1, 2
IAD15–0 Data Setup before End of Write
2, 3, 4
IAD15–0 Data Hold after End of Write
2, 3, 4
0
15
5
2
ns
ns
ns
ns
Switching Characteristic
:
t
IK HW
Start of Write to
IACK
High
15
ns
NOT ES
1
Start of Write =
IS
Low and
IWR
Low.
2
End of Write =
IS
High or
IWR
High.
3
If Write Pulse ends before
IACK
Low, use specifications t
IDSU
, t
IDH
.
4
If Write Pulse ends after
IACK
Low, use specifications t
IK SU
, t
IK H
.
IAD15–0
DATA
t
IKHW
t
IKW
t
IDSU
IACK
t
IWP
t
IDH
IS
IWR
Figure 15. IDMA Write, Short Write Cycle
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