EP80579 Datasheet, PDF (1197/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
33.6.2.6 Offset 06h: PV2R2 - Preload Value 2 Register 2
Table 33-31. Offset 06h: PV2R2 - Preload Value 2 Register 2
Description:
View: IA F
Base Address: Base (IO)
Offset Start: 06h
Offset End: 06h
Size: 8 bit
Default: 0Fh
Power Well: Core
Bit Range
07 : 04
03 : 00
Bit Acronym
Bit Description
Sticky
Reserved Reserved
Preload_Value_2 [19:16]: This register is used to hold
the bits 16 through 19 of the preload value2 for the WDT
Timer. The Value in the Preload Register is automatically
transferred into the 35-bit down counter every time the
WDT enters the second stage.
PLOAD2_19_16 The value loaded into the preload register needs to be one
less than the intended period. This is because the timer
makes use of zero-based counting (i.e. zero is counted as
part of the decrement).
Refer to Section 33.6.3.2 for details on how to change the
value of this register.
Bit Reset
Value
0h
Fh
Bit Access
RW
33.6.2.7 Offset 08h: GISR - General Interrupt Status Register
Table 33-32. Offset 08h: GISR - General Interrupt Status Register (Sheet 1 of 2)
Description:
View: IA F
Base Address: Base (IO)
Offset Start: 08h
Offset End: 08h
Size: 8 bit
Default: 00h
Power Well: Core
Bit Range
07 : 03
02
Bit Acronym
Bit Description
Sticky
Reserved
SMIACT
Reserved
Watchdog Timer SMI Interrupt Active (1st Stage):
This bit is set when the first Stage of the 35-bit Down
Counter Reaches zero. An SMI interrupt is generated if
WDT_INT_TYPE is configured to do so (See WDT
Configuration Register).
This is a sticky bit and is only cleared by writing a ‘1’. This
SMI interrupt will be routed to GPIO6 so that BIOS can
use the existing SMM handler to service this interrupt.
0 = No Interrupt
1 = Interrupt Active
Note: This bit is not set in free running mode. Also note
that to route the SMI interrupt to GPI6, the
GPI_ROUT[13:12] register in D31:F0:B8h must
be set to “01” to generate the WDT SMI interrupt
and GPIO6 cannot be used as a general purpose
input pin.
Bit Reset
Value
00h
0h
Bit Access
RWC
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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