ADSP-2187L Analog Devices, ADSP-2187L Datasheet - Page 26

• Manufacturer Part Number: ADSP-2187L
• Description: DSP Microcomputer
• Manufacturer: Analog Devices

ADSP-2187L
Parameter
IDMA Write, Short Write Cycle
Timing Requirements:
t
t
t
t
Switching Characteristic:
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
IAD15–0
IACK
IWR
1, 2
IS
Figure 27. IDMA Write, Short Write Cycle
IKSU
IDSU
, t
t
, t
1
IKH
IKW
IDH
.
.
2, 3, 4
2, 3, 4
t
IWP
t
IKHW
t
IDSU
–26–
DATA
t
IDH
Min
0
15
5
2
4
Max
15
REV. 0
Unit
ns
ns
ns
ns
ns