ATA Bus Interface and ATA Commands
6-14 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
Notes:
Notes:
Notes:
Notes:
1. The parameters t
UI
, t
MLI
and t
LI
indicate sender-to-recipient or recipient-to-
sender interlocks, i.e., one agent (either sender or recipient) is waiting for the
other agent to respond with a signal before proceeding. t
UI
is an unlimited
interlock that has no maximum time value. t
MLI
is a limited time-out that has
a defined minimum. t
LI
is a limited time-out that has a defined maximum.
2. 80-conductor cabling will be required in order to meet setup (t
DS
, t
CS
)
and hold (t
DH
, t
CH
) times in modes greater than 2.
3. Timing for t
DVS
, t
DVH
, t
CVS
and t
CVH
will be met for lumped capacitive
loads of 15 and 40 pf at the connector where the Data and STROBE
signals have the same capacitive load value. Due to reflections on the
cable, these timing measurements are not valid in a normally functioning
system.
4. For all modes the parameter t
ZIORDY
may be greater than t
ENV
due to the
fact that the host has a pull up on IORDY- giving it a known state when
released.
5. The parameters t
DS
, and t
DH
for mode 5 are defined for a recipient at the
end of the cable only in a configuration with one device at the end of the
cable.
Figures 6-3 through 6-12 define the timings associated with all phases of Ultra DMA
bursts.
t
ZIORDY
Minimum time before driving IORDY (see note 4)
t
ACK
Setup and hold times for DMACK- (before assertion or negation)
t
SS
Time from STROBE edge to negation of DMARQ or assertion of STOP (when sender
terminates a burst)
Содержание FIREBALL PLUS AS 10.2
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Страница 16: ...General Description 2 8 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Страница 61: ...Basic Principles of Operation Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT 5 16 ...
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Страница 150: ...ATA Bus Interface and ATA Commands 6 88 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Страница 162: ...Index I 4 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...