EP80579 Datasheet, PDF (1053/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
27.3.1.4 Offset B8h: GPI_ROUT - GPI Routing Control Register
Table 27-6. Offset B8h: GPI_ROUT - GPI Routing Control Register
Description:
View: PCI
BAR: Configuration
Bus:Device:Function: 0:31:0
Offset Start: B8h
Offset End: BBh
Size: 32 bit
Default: 00000000h
Power Well: Resume
Bit Range
31 : 02
01 : 00
Bit Acronym
Bit Description
Sticky
GPI
GPI[15] through GPI[1]: See bits 1:0 for description.
GPI0_Route
If the corresponding GPIO is implemented and is set to an
input, a ‘1’ in the GP_LVL bit can be routed to cause an
SMI# or SCI. If the GPIO is not set to an input, this field
has no effect.
• 00 – No effect (or GPIO unimplemented)
• 01 – SMI# (if corresponding ALT_GPI_SMI_EN bit also
set)
• 10 – SCI (if corresponding GPE0_EN bit also set)
• 11 – Reserved
If the system is in an S1,S3,S4 or S5 state and if the
GPE0_EN bit is also set, then the GPI can cause a Wake
event, even if the GPI is NOT routed to cause an SMI# or
SCI. Exception: If the system is in S5 state due to a
powerbutton override, then the GPIs will not cause wake
events.
Note: Core well GPIs are not capable of waking the
system from sleep states where the core well is
not powered.
Bit Reset
Value
0h
00h
Bit Access
RW
RW
27.3.2
Note:
APM Power Management I/O-Mapped Registers
Table 27-7 shows the I/O registers associated with APM support. This register space is
enabled in the PCI Device 31: Function 0 space (APMC_EN), and cannot be moved
(fixed I/O location).
For more information on the format of the register description tables that follow in this
chapter, see Section 7.1.1, “Register Description Tables” on page 183).
Table 27-7. Summary of APM Registers Mapped in I/O Space
Offset Start Offset End
Register ID - Description
Default
Value
B2h
B2h
“Offset B2h: APM_CNT - Advanced Power Management Control Port Register” on
page 1054
00h
B3h
B3h
“Offset B3h: APM_STS - Advanced Power Management Status Port Register” on
page 1054
00h
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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