ADSP-218xN Series
IDMA Write, Short Write Cycle
Table 22. IDMA Write, Short Write Cycle
Parameter
Timing Requirements:
tIKW
tIWP
tIDSU
tIDH
IACK Low before Start of Write1
Duration of Write1, 2
IAD15–0 Data Setup before End of Write2, 3, 4
IAD15–0 Data Hold after End of Write2, 3, 4
Switching Characteristic:
tIKHW
Start of Write to IACK High
1Start of Write = IS Low and IWR Low.
2End of Write = IS High or IWR High.
3If Write Pulse ends before IACK Low, use specifications tIDSU, tIDH.
4If Write Pulse ends after IACK Low, use specifications tIKSU, tIKH.
Min
0
10
3
2
IACK
IS
IWR
IAD15–0
tIKW
tIKHW
tIWP
tIDSU
tIDH
DATA
Figure 31. IDMA Write, Short Write Cycle
Max
10
Unit
ns
ns
ns
ns
ns
–34–
REV. 0