參數(shù)資料
型號(hào): ADSP-2187NBST-320
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號(hào)處理
英文描述: RESISTOR, FILM, CHIP (CHIP SIZE: 0805)
中文描述: 24-BIT, 40 MHz, OTHER DSP, PQFP100
封裝: MS-026BED, LQFP-100
文件頁數(shù): 33/48頁
文件大小: 1571K
代理商: ADSP-2187NBST-320
–33–
REV. 0
ADSP-218xN Series
IDMA Address Latch
Table 21. IDMA Address Latch
Parameter
Timing Requirements:
t
IALP
t
IASU
t
IAH
t
IKA
t
IALS
t
IALD
Min
Max
Unit
Duration of Address Latch
1,
2
IAD15–0 Address Setup before Address Latch End
2
IAD15–0 Address Hold after Address Latch End
2
IACK Low before Start of Address Latch
2,
3
Start of Write or Read after Address Latch End
2,
3
Address Latch Start after Address Latch End
1,
2
10
5
3
0
3
2
ns
ns
ns
ns
ns
ns
1
Start of Address Latch = IS Low and IAL High.
2
End of Address Latch = IS High or IAL Low.
3
Start of Write or Read = IS Low and IWR Low or IRD Low.
Figure 30. IDMA Address Latch
IACK
IAL
IS
IAD15–0
IRD
OR
IWR
t
IKA
t
IALP
t
IASU
t
IAH
t
IASU
t
IALS
t
IAH
t
IALP
t
IALD
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