adsp2185 Analog Devices, Inc., adsp2185 Datasheet - Page 24

• Manufacturer Part Number: adsp2185
• Description: Dsp Microcomputer
• Manufacturer: Analog Devices, Inc.

ADSP-2185
Parameter
IDMA Write, Short Write Cycle
Timing Requirements:
t
t
t
t
Switching Characteristics:
t
NOTES
1
2
3
4
Start of Write = IS Low and IWR Low.
End of Write = IS High or IWR High.
If Write Pulse ends before IACK Low, use specifications t
If Write Pulse ends after IACK Low, use specifications t
IKW
IWP
IDSU
IDH
IKHW
IACK Low before Start of Write
Duration of Write
IAD15–0 Data Setup before End of Write
IAD15–0 Data Hold after End of Write
Start of Write to IACK High
1, 2
IAD 15–0
IACK
IWR
IS
Figure 21. IDMA Write, Short Write Cycle
1
IKSU
IDSU
, t
t
, t
IKW
IKH
IDH
2, 3, 4
.
.
2, 3, 4
t
IWP
t
IKHW
t
IDSU
–24–
DATA
t
IDH
Min
0
15
5
2
Max
15
Unit
ns
ns
ns
ns
ns
REV. 0