
ADSP-2104/ADSP-2109
–32–
REV. 0
Frequency
13.824 MHz
Dependency
Parameter
Min
Max
Min
Max
Unit
Switching Characteristic:
tDW
Data Setup before WR High
23.2
0.5tCK – 13 + w
ns
tDH
Data Hold after WR High
8.1
0.25tCK – 10
ns
tWP
WR Pulse Width
28.2
0.5tCK – 8 + w
ns
tWDE
WR Low to Data Enabled
0
tASW
A0–A13, DMS, PMS Setup before WR Low
8.1
0.25tCK – 10
ns
tDDR
Data Disable before WR or RD Low
8.1
0.25tCK – 10
ns
tCWR
CLKOUT High to WR Low
13.1
28.1
0.25tCK – 5
0.25tCK + 10
ns
tAW
A0–A13, DMS, PMS, Setup before WR Deasserted
32.2
0.75tCK – 22 + w
ns
tWRA
A0–A13, DMS, PMS Hold After WR Deasserted
9.1
0.25tCK – 9
ns
tWWR
WR High to RD or WR Low
31.2
0.5tCK – 5
ns
w = wait states
× t
CK.
TIMING PARAMETERS (ADSP-2104L/ADSP-2109L)
MEMORY WRITE
CLKOUT
A0 – A13
D
WR
DMS, PMS
RD
tWDE
tDDR
tDH
tWWR
tWRA
tWP
tDW
tAW
tCWR
tASW
Figure 29. Memory Write