EP80579 Datasheet, PDF (721/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
18.2.2.7 Offset 0Ah: TCTL2 - TCO 2 Control Register
Table 18-8. Offset 0Ah: TCTL2 - TCO 2 Control Register
Description:
View: PCI
BAR: TCOBASE (IO)
Bus:Device:Function: 0:31:0
Offset Start: 0Ah
Offset End: 0Bh
Size: 16 bit
Default: 0008h
Power Well: Resume
Bit Range
15 : 06
05 : 04
03
02 : 01
00
Bit Acronym
Bit Description
Sticky
Reserved
OS_POLICY
GPIO11_
ALERT_
DISABLE
INTRD_SEL
Reserved
Reserved
Operating system-based software writes to these bits to
select the policy that the BIOS uses after the platform
resets due the WDT. The following convention is
recommended for the BIOS and operating system:
00 Boot normally
01 Shut down
10 Do not load operating system. Hold in preboot
state and use LAN to determine next step
11 Reserved
Note: These are scratchpad bits. They must not be
reset when the TCO logic resets the platform
due to Watchdog Timer.
At reset (via RSMRST# asserted) this bit is set and
GPI[11] alerts are disabled.
0 = Enable
1 = Disable GPI[11]/SMBALERT# as an alert source for
the SMBus slave
This field selects the action to take if the INTRUDER#
signal goes active.
00 No interrupt or SMI#
01 Interrupt (as selected by TCO_INT_SEL).
10 SMI#
11 Reserved
Reserved
Bit Reset
Value
000h
00h
1
00h
0h
Bit Access
RO
RW
RW
RW
RO
18.2.2.8
Note:
Offset 0Ch: TMSG[1-2] - TCO MESSAGE Register
The following table represents two registers.
Table 18-9. Offset 0Ch: TMSG[1-2] - TCO MESSAGE Register
Description: Offset: TMSG[1] = 0Ch-0Ch; TMSG[2] = 0Dh-0Dh
View: PCI
BAR: TCOBASE (IO)
Bus:Device:Function: 0:31:0
Offset Start: 0Ch at 01h
Offset End: 0Ch at 01h
Size: 8 bit
Default: 00h
Power Well: Resume
Bit Range
07 : 00
Bit Acronym
Bit Description
Sticky
TMSG
The value written into this register is sent out in the
MESSAGE field of the SMBus Event messages. BIOS can
write to this register to indicate its boot progress which
can be monitored externally.
Bit Reset
Value
00h
Bit Access
RW
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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