PDSP16488A MA
Value
Max.
Symbol
Notes
Characteristic
Units
Min.
DS Hold Time after REPLY active
Host Address/data Set Up Time
T
T
HSU
20
0
ns
ns
†
†
Only applicable for read ops & ifREPLY 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
DSH
T
5
5
ns
ns
ns
Read Set UpTime to prevent Write
Host Signal Hold Time
†
†
†
†
RA
HH
T
T
Must always be guaranteed.
DEL
30
50
Expansion in to Data Out in PROG mode
Delay from strobe to PC1
[Equivalent to PC0 to PC1 delay ]
No clocks are needed in PROG mode
Greater than TDEL under all conditions
T
EXP
ns
Chip Enable Set Up Time
PROG Set Up Time
PROG Hold Time
T
CSU
T
PSU
†
†
†
†
†
0
0
ns
ns
T
T
T
T
0
0
PH
CH
PCH
Chip Enable Hold Time
PC1 In-active Delay after DS in-active
ns
ns
Defines Data Strobe in-active time
From MASTER or SINGLE device
50
50
†
†
Coefficient Read Time
ACC
T
Coefficients valid Time before REPLY
5
ns
RSU
All parameters marked * are tested during production.
Parameters marked † are guaranteed by design and characterisation
T
>
T
Wait
DATUM
PCH
T
Wait
Host Data Strobe
T
T
T
csu
CH
Chip Enable
PROG
T
PSU
PH
T
ACC
Coefficient
Output
T
RSU
T
EXP
T
PCH
PC1 from
MASTER or SINGLE device
T
DSH
PC1 from last
device (REPLY)
T
RA
R/W from the Host
T
HSU
T
HH
Address/data
from the Host
VALID
T
DEL
Host Data O/P
from First Device
VALID
FIG. 8. Host Timing
15
MITEL [ MITEL NETWORKS CORPORATION ]
