82801FB Datasheet, PDF (60/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Signal Description
Table 2-6. PCI Interface Signals (Sheet 3 of 3)
Name
Type
Description
PLOCK#
PCI Lock: This signal indicates an exclusive bus operation and may require
multiple transactions to complete. ICH6 asserts PLOCK# when it performs non-
I/O exclusive transactions on the PCI bus. PLOCK# is ignored when PCI masters are
granted the bus in desktop configurations. Devices on the PCI bus (other than the
ICH6) are not permitted to assert the PLOCK# signal in mobile configurations.
SERR#
System Error: SERR# can be pulsed active by any PCI device that detects a
OD I/O system error condition. Upon sampling SERR# active, the ICH6 has the ability to
generate an NMI, SMI#, or interrupt.
PME#
OD I
PCI Power Management Event: PCI peripherals drive PME# to wake the system
from low-power states S1–S5. PME# assertion can also be enabled to generate an
SCI from the S0 state. In some cases the ICH6 may drive PME# active due to an
internal wake event. The ICH6 will not drive PME# high, but it will be pulled up to
VccSus3_3 by an internal pull-up resistor.
CLKRUN#
PCI Clock Run: This signal is used to support PCI Clock Run protocol. It connects
(Mobile Only) /
GPIO[32]
I/O ^{to PCI devices that need to request clock re-start, or prevention of clock stopping.}
(Desktop Only)
NOTE: An external pull-up to Vcc3_3 is required.
2.7
Serial ATA Interface
Table 2-7. Serial ATA Interface Signals (Sheet 1 of 2)
Name
SATA[0]TXP
SATA[0]TXN
SATA[0]RXP
SATA[0]RXN
SATA[1]TXP
SATA[1]TXN
SATA[1]RXP
SATA[1]RXN
SATA[2]TXP
SATA[2]TXN
SATA[2]RXP
SATA[2]RXN
SATA[3]TXP
SATA[3]TXN
SATA[3]RXP
SATA[3]RXN
SATARBIAS
SATARBIAS#
Type
Description
O
Serial ATA 0 Differential Transmit Pair: These are outbound high-speed
differential signals to Port 0.
I
Serial ATA 0 Differential Receive Pair: These are inbound high-speed
differential signals from Port 0.
O
Serial ATA 1 Differential Transmit Pair: These are outbound high-speed
differential signals to Port 1. (Desktop Only)
I
Serial ATA 1 Differential Receive Pair: These are inbound high-speed
differential signals from Port 1. (Desktop Only)
O
Serial ATA 2 Differential Transmit Pair: These are outbound high-speed
differential signals to Port 2.
I
Serial ATA 2 Differential Receive Pair: These are inbound high-speed
differential signals from Port 2.
O
Serial ATA 3 Differential Transmit Pair: These are outbound high-speed
differential signals to Port 3. (Desktop Only)
I
Serial ATA 3 Differential Receive Pair: These are inbound high-speed
differential signals from Port 3. (Desktop Only)
O
Serial ATA Resistor Bias: These are analog connection points for an external
resistor to ground.
I
Serial ATA Resistor Bias Complement: These are analog connection points
for an external resistor to ground.
60
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet