EP80579 Datasheet, PDF (1855/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
49.5.4.3 SATA DC Output Characteristics
Table 49-26. SATA DC Output Characteristics (SATA_TX(P,N))
Symbol
Parameter
Conditions Gen 1 m Gen 2 m
Units
Note
V_OMIN8
Minimum Output
Voltage
400
400
mVdiff p-p
1
V_OMAX8
Maximum Output
Voltage
600
700
mVdiff p-p
1
Notes:
1.
SATA Vdiff, Tx (VOMAX/MIN8) is measured at the SATA connector on the transmit side
closest to the IICH (generally, the motherboard connector), where SATA mV diff p-p =
|SATAxTXP - SATAxTXN
Table 49-27. SATA DC Output Characteristics (SATALED#)
Symbol
Parameter
V_OH
Output voltage high
V_OL
Output voltage low
Ι_OH
Output current at
high voltage
Ι_OL
Output current at
low voltage
Conditions
l_out=-6mA
l_out=6mA
V_OH=2.4
V_OL=0.8
Min
2.4
-
-
Typical
-
-
-
Max
0.4
-6
2
-
-
Units
V
V
mA
mA
49.5.4.3.1 SATA_CLK
The 100MHz Serial ATA Reference Clock (SATACLKP, SATACLKN) is the main clock for
the SATA interface. The reference clock is used by the SATA PLL to generate the clocks
of the SATA interface and is implemented on the system as a ground-terminated, low-
voltage differential signal pair driven by the system clock chip.
Table 49-28. SATA DC Clock Specifications (SATA_CLKN, SATA_CLKP)
Symbol
Parameter
Conditions
VIL12
Input Low
Voltage
VIH12
Input High
Voltage
Vcross(abs)
Absolute Crossing
Point
Min
-0.150
0.660
0.250
Typical
Max
0.150
0.850
0.550
Units
V
V
V
49.5.4.4
SATA LED
The SATALED# output is driven whenever the BSY bit is set in any SATA port. The
SATALED# is an active-low open-collector output. When SATALED# is low, the LED is
active. When SATALED# is high, the LED is inactive.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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