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Parameter
Memory Write
Switching Characteristics:
t
Data Setup before WR High
DW
t
Data Hold after WR High
DH
t
WR Pulse Width
WP
t
WR Low to Data Enabled
WDE
t
A0-A13, xMS Setup before WR Low
ASW
t
Data Disable before WR or RD Low
DDR
t
CLKOUT High to WR Low
CWR
t
A0-A13, xMS, Setup before WR Deasserted
AW
A0-A13, xMS Hold after WR Deasserted
t
WRA
t
WR High to RD or WR Low
WWR
w = wait states
t
.
CK
xMS = PMS, DMS, CMS, IOMS, BMS.
CLKOUT
DMS, PMS,
BMS, CMS,
REV. 0
A0–A13
IOMS
WR
t
CWR
D
RD
Figure 18. Memory Write
Min
0.5 t
– 7+ w
CK
0.25 t
– 2
CK
0.5 t
– 5 + w
CK
0
0.25 t
– 6
CK
0.25 t
– 7
CK
0.25 t
– 5
CK
0.75 t
– 9 + w
CK
0.25 t
– 3
CK
0.5 t
– 5
CK
t
WRA
t
t
ASW
WP
t
AW
t
DH
t
DW
t
WDE
–21–
ADSP-2186
Max
0.25 t
+ 7
CK
t
WWR
t
DDR
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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