Datasheet

REV. 0
ADSP-2188M
–27–
Parameter Min Max Unit
Memory Read
Timing Requirements:
t
RDD
RD Low to Data Valid 0.5t
CK
– 5 + w ns
t
AA
A0–A13, xMS to Data Valid 0.75t
CK
– 6 + w ns
t
RDH
Data Hold from RD High 0 ns
Switching Characteristics:
t
RP
RD Pulsewidth 0.5t
CK
– 3 + w ns
t
CRD
CLKOUT High to RD Low 0.25t
CK
– 2 0.25t
CK
+ 4 ns
t
ASR
A0–A13, xMS Setup before RD Low 0.25t
CK
– 3ns
t
RDA
A0–A13, xMS Hold after RD Deasserted 0.25t
CK
– 3ns
t
RWR
RD High to RD or WR Low 0.5t
CK
– 3ns
NOTES
w = wait states x t
CK
.
xMS = PMS, DMS, CMS, IOMS, BMS.
CLKOUT
A0–A13
D0–D23
t
RDA
t
RWR
t
RP
t
ASR
t
CRD
t
RDD
t
AA
t
RDH
DMS, PMS,
BMS, IOMS,
CMS
RD
WR
Figure 24. Memory Read