FW82801DB S L66K Intel, FW82801DB S L66K Datasheet - Page 348
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FW82801DB S L66K
Manufacturer Part Number
FW82801DB S L66K
Description
Manufacturer
Intel
Datasheet
1.FW82801DB_S_L66K.pdf
(587 pages)
Specifications of FW82801DB S L66K
Lead Free Status / RoHS Status
Supplier Unconfirmed
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LPC Interface Bridge Registers (D31:F0)
9.8.1.3
348
GEN_PMCON_3—General PM Configuration 3 Register (PM—D31:F0)
Offset Address:
Default Value:
Lockable:
NOTE: RSMRST# is sampled using the RTC clock. Therefore, low times that are less than one RTC clock
Bit
7:6
5:3
2
1
0
period may not be detected by the ICH4.
SWSMI_RATE_SEL — R/W. This 2-bit value indicates when the SWSMI timer will time out. Valid
values are:
00 = 1.5 ms ± 0.5 ms
01 = 16 ms ± 4 ms
10 = 32 ms ± 4 ms
11 = 64 ms ± 4 ms
Reserved
RTC Power Status ( RTC_PWR_STS) — R/W. This bit is set when RTCRST# is low. The bit is not
cleared by any type of reset. When the system boots, BIOS can detect that the FREQ_STRAP
register contents are 1111 (the default when RTCRST# has been low). If this bit is also set, then
BIOS knows the RTC battery had been removed. In that case, BIOS should take steps to reprogram
the FREQ_STRAP register with the correct value, and then reboot the system.
Power Failure (PWR_FLR) — R/WC. This bit is in the RTC well, and is not cleared by any type of
reset except RTCRST#.
0 = Indicates that the trickle current has not failed since the last time the bit was cleared. Software
1 = Indicates that the trickle current (from the main battery or trickle supply) was removed or failed.
NOTE: Clearing CMOS in an Intel
AFTERG3_EN — R/W. Determines what state to go to when power is re-applied after a power
failure (G3 state). This bit is in the RTC well and is not cleared by any type of reset except writes to
CF9h or RTCRST#.
0 = System will return to S0 state (boot) after power is re-applied.
1 = System will return to the S5 state (except if it was in S4, in which case it will return to S4). In the
clears this bit by writing a 1 to the bit position.
S5 state, the only enabled wake event is the Power Button or any enabled wake event that was
preserved through the power failure.
RTCRST# or GPI, or using SAFEMODE strap. Implementations should not attempt to clear
CMOS by using a jumper to pull VccRTC low.
A4h
00h
No
®
ICH4-based platform can be done by using a jumper on
Description
Attribute:
Size:
Usage:
Power Well:
Intel
R/W, R/WC
8 bit
ACPI, Legacy
RTC
®
82801DB ICH4 Datasheet
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