Silicon Image SiliconDrive SSD-D32G(I)-4300 - Manual (Page 35)

E LECTRICAL S PECIFICATION SSD-D XXX (I)-4300 D ATA S HEET
S ILICON S YSTEMS P ROPRIETARY
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4300D-00DSR P AGE 26 F EBRUARY 27, 2009
t
SS
50 - 50 - 50 - 50 - 50 - Time from STROBE edge to
negation of DMARQ or
assertion of STOP (when the
sender terminates a burst).
ns
Notes:
1. Timing parameters are measured at the connector of the sender or receiver to which the parameter applies.
Both STROBE and DMARDY- timing measurements are taken at the sender’s connector.
Example: For example, the sender stops generating STROBE edges t
RFS
after the negation of DMARDY-.
2. All timing measurement switching points (low-to-high and high-to-low) are taken at 1.5V.
3. The symbols t
UI
, t
MLI
, and t
LI
indicate sender-to-recipient or recipient-to-sender interlocks (i.e., either the sender
or recipient is waiting for the other to respond with a signal before proceeding). The symbol t
UI
is an unlimited
interlock that has no maximum time value, t
MLI
is a limited time-out that has a defined minimum, and t
LI
is a
limited time-out that has a defined maximum.
4. The test load for t
DVS
and t
DVH
are a lumped capacitor load with no cable or receivers. Timing for t
DVS
and t
DVH
are met for all capacitive loads from 15pF to 40pF where all signals have the same capacitive load value.
5. The symbol t
ZIORDY
may be greater than t
ENV
since the device has a pull-up on IORDY- giving it a known state
when released.
Table 13: UDMA Data Burst Timing Requirements (Continued)
Symbol
Mode 0 Mode 1 Mode 2 Mode 3 Mode 4
Comment (see Notes 1 and
2)
Units
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.