PDSP16488AMA Datasheet, PDF (15/30 Pages) Mitel Networks Corporation – Single Chip 2D Convolver with Integral Line Delays

PDSP16488A MA
Characteristic
† DS Hold Time after REPLY active
† Host Address/data Set Up Time
Symbol
T_DSH
THSU
Value
Min. Max.
20
0
Units
ns
ns
† ^{Read Set UpTime to prevent Write}
TRA
5
† Host Signal Hold Time
THH
5
† _{Expansion in to Data Out in PROG mode}
† _{Delay from strobe to PC1}
[Equivalent to PC0 to PC1 delay ]
TDEL
TEXP
† Chip Enable Set Up Time
TCSU
0
† PROG Set Up Time
TPSU
0
† PROG Hold Time
T _PH
0
† _{Chip Enable Hold Time}
† _{PC1 In-active Delay after DS in-active}
T _CH
T_PCH
0
† Coefficient Read Time
T _ACC
† Coefficients valid Time before REPLY
TRSU
5
ns
ns
30
ns
50
ns
ns
ns
50
ns
50
ns
ns
All parameters marked * are tested during production.
Parameters marked † are guaranteed by design and characterisation
Notes
Only applicable for read ops & if REPLY is used.
Only applicable if REPLY is used. Otherwise
time is referenced to risng edge of strobe
when set up must be N xTDEL, for Ndevices
Must always be guaranteed.
No clocks are needed in PROG mode
Greater than TDEL under all conditions
Defines Data Strobe in-active time
From MASTER or SINGLE device
DATUM
T _Wait > _TPCH
T _Wait
Host Data Strobe
T_csu
T
CH
Chip Enable
T
PSU
T
PH
PROG
Coefficient
Output
PC1 from
MASTER or SINGLE device
T
ACC
T
EXP
T
RSU
T _PCH
T _DSH
PC1 from last
device (REPLY)
R/W from the Host
Address/data
from the Host
Host Data O/P
from First Device
T
RA
T _HSU
TDEL
VALID
T _HH
VALID
FIG. 8. Host Timing
15