307013-003 Datasheet, PDF (807/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

Electrical Characteristics
Table 23-14. Ultra ATA Timing (Mode 3, Mode 4, Mode 5) (Sheet 1 of 2)
Sym
1
Parameter
Mode 3
(ns)
Min Max
Mode 4
(ns)
Min Max
Mode 5
(ns)
Min Max
Measuring
Location
Figure
t80
t81
t82
t83
t83b
t84
t84b
t85
t85b
t86
t86b
t87
t88
t89
t90
t91
t92a
Sustained Cycle Time
(T2cyctyp)
Cycle Time (Tcyc)
90
60
40
39
—
25
—
16.
8
—
Two Cycle Time (T2cyc)
86 — 57 — 38 —
Data Setup Time (Tds)
7 — 5 — 4.0 —
Recipient IC data setup time
(from data valid until
STROBE edge) (see Note ²)
6.8
—
4.8
—
2.3
—
(Tdsic)
Data Hold Time (Tdh)
5 — 5 — 4.6 —
Recipient IC data hold time
(from STROBE edge until
data may become invalid)
(see Note ²) (Tdhic)
4.8 — 4.8 — 2.8 —
Data Valid Setup Time
(Tdvs)
20 — 6.7 — 4.8 —
Sender IC data valid setup
time (from data valid until 22.
STROBE edge) (see Note ²) 6
—
9.5
—
6.0
—
(Tdvsic)
Data Valid Hold Time (Tdvh) 6.2 — 6.2 — 4.8 —
Sender IC data valid hold
time (from STROBE edge
until data may become
invalid)
(see Note ²) (Tdvhic)
9.0 — 9.0 — 6.0 —
Limited Interlock Time (Tli) 0 100 0 100 0 75
Interlock Time w/ Minimum
(Tmli)
20
—
20
—
20
—
Envelope Time (Tenv)
20 55 20 55 20 50
Ready to Pause Time (Trp) 100 — 100 — 85 —
DMACK setup/hold Time
(Tack)
CRC Word Setup Time at
Host (Tcvs)
20 — 20 — 20 —
20 — 6.7 — 10 —
Sender
Connector
End
Recipient
Connector
Sender
Connector
Recipient
Connector
ICH7 Balls
Recipient
Connector
ICH7 Balls
Sender
Connector
ICH7 Balls
Sender
Connector
ICH7 Balls
See Note 2
Host
Connector
Host
Connector
Recipient
Connector
Host
Connector
Host
Connector
23-10
23-10
23-10
23-10
23-9
23-10
23-9
23-10
23-12
23-12
23-10
23-11
23-12
Intel ^® ICH7 Family Datasheet
807