ADSP-2141L View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'ADSP-2141L' PDF : 39 Pages View PDF
ADSP-2141L
Parameter
External Memory Write: ADSP-2141L DMA Initiated
Switching Characteristics:
tA
Clock to Address and DMSx
tDW
Data Setup Before Write Deasserted
tDH
Data Hold After Write Deasserted
tWP
Write Pulsewidth
tWDE
Write Low to Data Enabled
tASW
Address, DMSx Setup Before Write Low
tDDR
Data Disable Before Write/Read Low
tCWR
Clock High to Write Low
tAW
Address, DMSx Setup Before Write High
tAH
Address and DMSx Hold After Clock
tWRA
Address, DMSx Hold After Write High
tWWR
Write High to Read/Write Low
1. If wait-state(s) added, then referenced to last wait-state clock interval.
2. w = DMA wait states × tCK.
Min
Max
5
9
0.5tCK – 2 + w
0.5tCK – 8
0.5tCK – 5 + w
–5
1
0
6
12
0.5tCK – 2 + w
2
0.5tCK – 7
0.5tCK – 3
DSP CLOCK
OUT
EXT. ADDR
(A25–0)
EXT. DMSH
EXT. DMSL
tA
tCWR
25ns (REF @ 40MHz)
tASW
tAW
tWP
t AH
tWRA
tWWR
EXT. WR
EXT. DATA
(D31–0)
tWDE
tDW
tDH
tDDR
Figure 13. External Memory Write: ADSP-2141L DMA Initiated
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
REV. 0
–23–
Share Link: 
