Intel 6 SERIES CHIPSET - DATASHEET 01-2011 Datasheet page 59

Signal Description
Table 2-4. Serial ATA Interface Signals (Sheet 2 of 3)
Name
SATA3RXP
SATA3RXN
SATA4TXP
SATA4TXN
SATA4RXP
SATA4RXN
SATA5TXP
SATA5TXN
SATA5RXP
SATA5RXN
SATAICOMPO
SATAICOMPI
SATA0GP /
GPIO21
SATA1GP /
GPIO19
SATA2GP /
GPIO36
Datasheet
Type
Serial ATA 3 Differential Receive Pair: These are inbound high-
speed differential signals from Port 3.
In compatible mode, SATA Port 3 is the secondary slave of SATA
Controller 1
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Supports up to 3 Gb/s and 1.5 Gb/s.
NOTE: SATA Port 3 may not be available in all PCH SKUs.
Serial ATA 4 Differential Transmit Pair: These are outbound
high-speed differential signals to Port 4.
O In compatible mode, SATA Port 4 is the primary master of SATA
Controller 2.
Supports up to 3 Gb/s and 1.5 Gb/s.
Serial ATA 4 Differential Receive Pair: These are inbound high-
speed differential signals from Port 4.
I In compatible mode, SATA Port 4 is the primary master of SATA
Controller 2.
Supports up to 3 Gb/s and 1.5 Gb/s.
Serial ATA 5 Differential Transmit Pair: These are outbound
high-speed differential signals to Port 5.
O In compatible mode, SATA Port 5 is the secondary master of SATA
Controller 2.
Supports up to 3 Gb/s and 1.5 Gb/s.
Serial ATA 5 Differential Receive Pair: These are inbound high-
speed differential signals from Port 5.
I In compatible mode, SATA Port 5 is the secondary master of SATA
Controller 2.
Supports up to 3 Gb/s and 1.5 Gb/s.
Serial ATA Compensation Output: Connected to an external
O precision resistor to VccCore. Must be connected to SATAICOMPI
on the board.
Serial ATA Compensation Input: Connected to SATAICOMPO on
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the board.
Serial ATA 0 General Purpose: This is an input pin which can be
configured as an interlock switch corresponding to SATA Port 0.
When used as an interlock switch status indication, this signal
should be drive to '0' to indicate that the switch is closed and to '1'
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to indicate that the switch is open.
If interlock switches are not required, this pin can be configured as
GPIO21.
Serial ATA 1 General Purpose: Same function as SATA0GP,
except for SATA Port 1.
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If interlock switches are not required, this pin can be configured as
GPIO19.
Serial ATA 2 General Purpose: Same function as SATA0GP,
except for SATA Port 2.
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If interlock switches are not required, this pin can be configured as
GPIO36.
Description
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