Page 48 - GIGABYTE Service Manual-v3.0-110101

Manageability Sleep State Control: This signal is used to control

power planes to the Intel AMT sub-system. If no Intel Management
SLP_M#
Engine firmware is present, SLP_M# will have the same timings as
SLP_S3#.
S4 State Indication: This signal asserts low when the host platform is

in S4 or S5 state. In platforms where the Intel Management Engine is
S4_STATE# forcing the SLP_S4# high along with SLP_M#, this signal can be
used by other devices on the board to know when the host platform is
below the S3 state.

Power Button: The Power Button will cause SMI# or SCI to indicate
a system request to go to a sleep state. If the system is already in a
sleep state, this signal will cause a wake event. If PWRBTN# is
PWRBTN#
pressed for more than 4 seconds, this will cause an unconditional
PWRBTSW
transition (power button override) to the S5 state. Override will occur
even if the system is in the S1–S4 states. This signal has an internal
pull-up resistor and has an internal 16 ms de-bounced on the input.

Ring Indicate: This signal is an input from a modem. It can be
RI#
enabled as a wake event, and this is preserved across power failures.
Resume Well Reset: This signal is used for resetting the resume
power plane logic. This signal must be asserted for at least 10 ms

RSMRST# after the suspend power wells are valid. When deasserted, this signal
is an indication that the suspend power wells are stable. And the
power ok signal of IO VCCH.
PCI Express* Wake Event: Sideband wake signal on PCI Express
WAKE#
asserted by components requesting wake up.
Internal Voltage Regulator Enable: This signal enables the internal
INTVRMEN VccSus1_1, VccSus1_5 and VccCL1_5 regulators. This signal must
be pulled-up to VccRTC.

RTC Reset: When asserted, this signal resets register bits in the RTC
well.
NOTES: 1. Unless CMOS is being cleared (only to be done in the G3

RTCRST# power state); the RTCRST# input must always be high when all other
RTC power planes are on. 2. In the case where the RTC battery is
dead or missing on the platform, the RTCRST# pin must rise before
the RSMRST# pin.

Table 2-8: The Related Signals of Power On

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