Analog Devices ADSP-2186 - Manual (Page 27)

ADSP-2186
REV. 0 –27–
Parameter Min Max Unit
IDMA Read, Short Read Cycle
Timing Requirements:
t
IKR
IACK Low before Start of Read 1 0 ns
t
IRP
Duration of Read 15 ns
Switching Characteristics:
t
IKHR
IACK High after Start of Read 1 15 ns
t
IKDH
IAD15–0 Data Hold after End of Read 2 0 ns
t
IKDD
IAD15–0 Data Disabled after End of Read 2 10 ns
t
IRDE
IAD15–0 Previous Data Enabled after Start of Read 0 ns
t
IRDV
IAD15–0 Previous Data Valid after Start of Read 15 ns
NOTES
1 Start of Read = IS Low and IRD Low.
2 End of Read = IS High or IRD High.
t
IRP
t
IKR
PREVIOUS
DATA
t
IKHR
t
IRDV
t
IKDD
t
IRDE
t
IKDH
IAD 15–0
IACK
IS
IRD
Figure 24. IDMA Read, Short Read Cycle