EP80579 Datasheet, PDF (1754/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 48-17. Serial ATA Interface Signals (Sheet 2 of 2)
Signal Name
SATA_TXn1
SATA_RXp1
SATA_RXn1
SATA_RBIAS
SATA_RBIAS#
GP26_SATA0GP
GP29_SATA1GP
SATALED#
IO Type
LV Diff
LV Diff
LV Diff
Analog
Analog
LVTTL,3.3V
TOTAL
Direction
Ball
Count
External
Pull-Up/
Down
[Ohms]
BSC/
XOR
Signal Description Normal/Alternate Mode
O
1
XOR
Serial ATA Interface Port 1 Transmit Data Pair
(Differential): The negative side of the port 1
transmit data pair.
I
1
XOR
Serial ATA Interface Port 1 Receive Data Pair
(Differential): The positive side of the port 1
receive data pair.
I
1
XOR
Serial ATA Interface Port 1 Receive Data Pair
(Differential): The negative side of the port 1
receive data pair.
I
1
XOR
Serial ATA Resistor Bias (Positive): Analog
connection point for an external bias resistor.
I
1
XOR
Serial ATA Resistor Bias (Negative): Analog
connection point for an external bias resistor.
See GPIO interface.
See GPIO interface.
OD O
1
220 to 10K
Ohms
BSC
Serial ATA LED: This is an open-collector/open-
drain output signal driven during SATA
command activity. It is to be connected to
external circuitry that can provide the current to
drive a platform LED. When active, the LED is
on. When tristated, the LED is off. An external
pull-up resistor is required.
13
Intel^® EP80579 Integrated Processor Product Line Datasheet
1754
August 2009
Order Number: 320066-003US