Intel 31244 PCI-X ユーザーズマニュアル
61
Test Methodology
10
The signaling requirements of the SATA specification are measured for signal quality,
details the values from the SATA Specification, revision 1.0, 29 August 200, starting on page 76.
Table 26.
Interface Timing and SI Requirements
Symbol
Parameter
Min
Max
Units
T,UI
Operating data period
666.43
670.12
ps
t
rise
20% to 80% at transmitter
0.2
0.41
UI
t
fall
80% to 20% at transmitter
0.2
0.41
UI
V
cm,ac
Max sinusoidal amplitude of common mode signal
measured at receiver connector
measured at receiver connector
100
mV
T
settle,CM
Maximum time for common-mode transients to settle to
within 10% of DC value during transitions to and from the
idle bus condition.
within 10% of DC value during transitions to and from the
idle bus condition.
10
ns
V
diff,tx
+/- 250 mV differential nominal. Measured at Serial ATA
connector on transmit side
connector on transmit side
400
600
mV p-p
V
diff,rx
+/- 200 mV differential nominal. Measured at Serial ATA
connector on receive side
connector on receive side
325
600
mV p-p
Tx
Zout
Tx differential output impedance as seen by a differential
TDR with 100 ps (max) edge looking into connector
(20%-80%)
TDR with 100 ps (max) edge looking into connector
(20%-80%)
85
115
Ohm
Rx
Zin
Rx differential input impedance as seen by a differential
TDR with 100 ps (max) edge looking into connector
(20%-80%)
TDR with 100 ps (max) edge looking into connector
(20%-80%)
85
115
Ohms
Tx
Skew
TX differential skew
20
ps