Datasheet

Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family 229
Datasheet Volume Two: Functional Description, February 2014
Integrated I/O (IIO) Configuration Registers
4:4 RW_O 0x0
power_indicator_present:
This bit indicates that a Power Indicator is implemented for this slot and is
electrically controlled by the chassis.
0: indicates that a Power Indicator that is electrically controlled by the
chassis is not present
1: indicates that Power Indicator that is electrically controlled by the chassis
is present
BIOS programs this field with a 1 for CEM/Express Module FFs, if the slot is
hotplug capable.
3:3 RW_O 0x0
attention_indicator_present:
This bit indicates that an Attention Indicator is implemented for this slot and
is electrically controlled by the chassis
0: indicates that an Attention Indicator that is electrically controlled by the
chassis is not present
1: indicates that an Attention Indicator that is electrically controlled by the
chassis is present
BIOS programs this field with a 1 for CEM/Express Module FFs, if the slot is
hotplug capable.
2:2 RW_O 0x0
mrl_sensor_present:
This bit indicates that an MRL Sensor is implemented on the chassis for this
slot.
0: indicates that an MRL Sensor is not present
1: indicates that an MRL Sensor is present
BIOS programs this field with a 0 for Express Module FF always. If CEM slot
is hotplug capable, BIOS programs this field with either 0 or 1 depending on
system design.
1:1 RW_O 0x0
power_controller_present:
This bit indicates that a software controllable power controller is
implemented on the chassis for this slot.
0: indicates that a software controllable power controller is not present
1: indicates that a software controllable power controller is present
BIOS programs this field with a 1 for CEM/Express Module FFs, if the slot is
hotplug capable.
0:0 RW_O 0x0
attention_button_present:
This bit indicates that the Attention Button event signal is routed (from slot
or on-board in the chassis) to the IIO’s hotplug controller.
0: indicates that an Attention Button signal is routed to IIO
1: indicates that an Attention Button is not routed to IIO
BIOS programs this field with a 1 for CEM/Express Module FFs, if the slot is
hotplug capable.
Type: CFG PortID: N/A
Bus: 0 Device: 0Function:0 (PCIe* Mode)
Bus: 0 Device: 2Function:0-3
Bus: 0 Device: 3Function:0-3
Offset: 0xa4
Bit Attr Default Description