adsp-21msp58 Analog Devices, Inc., adsp-21msp58 Datasheet - Page 29

• Manufacturer Part Number: adsp-21msp58
• Description: Dsp Microcomputers
• Manufacturer: Analog Devices, Inc.

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Parameter
Memory Write
Switching Characteristic:
t
t
t
t
t
t
t
t
t
t
NOTE
w = wait states
DW
DH
WP
WDE
ASW
DDR
CWR
AW
WRA
WWR
t
CK.
Data Setup before WR High
Data Hold after WR High
WR Pulse Width
WR Low to Data Enabled
A0-A13, DMS, PMS Setup before WR Low
Data Disable before WR or RD Low
CLKOUT High to WR Low
A0-A13, DMS, PMS, Setup before WR Deasserted
A0-A13, DMS, PMS Hold after WR Deasserted
WR High to RD or WR Low
DMS, PMS
A0 – A13
CLKOUT
WR
RD
D
Figure 19. Memory Write
t
CWR
t
ASW
–29–
t
WDE
t
AW
t
WP
t
DW
Min
0.5t
0.25t
0.5t
0
0.25t
0.25t
0.25t
0.75t
0.25t
0.5t
CK
CK
CK
CK
CK
CK
CK
CK
CK
– 7 + w
– 5 + w
– 5
t
– 2
– 6
– 5
– 9 + w
– 3
WRA
– 6
t
DH
t
WWR
t
ADSP-21msp58/59
DDR
Max
0.25t
CK
+ 7
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns