876784 Intel, 876784 Datasheet - Page 808

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

Table 23-14. Ultra ATA Timing (Mode 3, Mode 4, Mode 5) (Sheet 2 of 2)
808
1.
2.
NOTES:
Sym
t92b
t96a
t96b
t98a
t98b
t93
t94
t95
t97
t99
The specification symbols in parentheses correspond to the AT Attachment
(ATA/ATAPI
See the AT Attachment
measuring these timing parameters.
CRC Word Hold Time at
Sender
CRC word valid hold time at
sender (from DMACK#
negation until CRC may
become invalid) (see Note
(Tcvh)
STROBE output released-to-
driving to the first transition
of critical timing (Tzfs)
Data Output Released-to-
Driving Until the First
Transition of Critical Timing
(Tdzfs)
Unlimited Interlock Time
(Tui)
Maximum time allowed for
output drivers to release
(from asserted or negated)
(Taz)
Drivers to assert or negate
(from released) (Tzad)
Ready-to-final-STROBE time
(no STROBE edges shall be
sent this long after negation
of DMARDY#) (Trfs)
Maximum time before
releasing IORDY (Tiordyz)
Minimum time before
driving IORDY (see Note
(Tziordy)
Time from STROBE edge to
negation of DMARQ or
assertion of STOP (when
sender terminates a burst)
(Tss)
–
6) specification name.
Parameter
–
6 with Packet Interface (ATA/ATAPI
1
2
2
)
)
Min
6.2
20.
50
—
—
—
0
0
0
0
0
Mode 3
(ns)
Max
10
60
20
—
—
—
—
—
—
—
Min
6.2
6.7
50
—
—
—
Mode 4
0
0
0
0
(ns)
Max
10
60
20
—
—
—
—
—
—
—
–
6) specification for further details on
Min
10.
35
25
50
—
—
—
Mode 5
0
0
0
0
(ns)
Max
Intel
10
50
20
—
—
—
—
—
—
—
–
®
Electrical Characteristics
6 with Packet Interface
Measuring
See Note 2
Connector
Connector
Connector
Connector
Connector
Connector
Connector
Connector
Connector
ICH7 Family Datasheet
Location
Sender
Sender
Sender
Device
Device
Device
Device
Host
Host
Figure
23-12
23-11