ADSP-2186_01 Datasheet, PDF (23/36 Pages) Analog Devices – DSP Microcomputer

TIMING PARAMETERS
Parameter
IDMA Write, Short Write Cycle
Timing Requirements:
t_IKW
IACK Low before Start of Write¹
t_IWP
Duration of Write^{1, 2}
t_IDSU
IAD15–0 Data Setup before End of Write^{2, 3, 4}
t_IDH
IAD15–0 Data Hold after End of Write^{2, 3, 4}
Switching Characteristics:
t_IKHW
Start of Write to IACK High
NOTES
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 tIDSU, tIDH.}
4_{If Write Pulse ends after IACK Low, use specifications tIKSU, tIKH.}
Min
0
15
5
2
IACK
IS
t_IKW
t_IKHW
IWR
IAD15–0
t_IWP
t_IDSU
t_IDH
DATA
Figure 18. IDMA Write, Short Write Cycle
ADSP-2186
Max
Unit
ns
ns
ns
ns
15
ns
REV. B
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