Register Description
3.7.2.1
SSTS – Slot Status Field, Bits [15:0]
This field contains status information about the slot.
Bits
Type
Reset
Description
15
14
RO
RO
RO
0
0
Reserved.
Reserved.
13:12
xx
PCI-X Capability (PCI-X_CAP): These bits report the current PCI-X capability
of the add-in card installed in the slot. These bits are not valid if the slot is
empty. If the slot is occupied, these bits are valid regardless of the state of the
slot or speed/mode of the bus.
00b Non PCI-X
01b 66 MHz PCI-X Mode
10b Reserved
11b 133 MHz PCI-X Mode
11:10
RO
xx
PRSNT1#/PRSNT2# (PRSNT1_PRSNT2): These bits report the current de-
bounced state of the PRSNT1# and PRSNT2# slot pins. These bits are valid
regardless of the state of the slot or speed/mode of the bus.
00b Card Present; 7.5W
01b Card Present; 25W
10b Card Present; 15W
11b Slot Empty
9
RO
x
66 MHz Capable (HP_M66EN): This bit reports whether the add-in card is
capable of running at 66 MHz conventional mode. This bit is latched as the slot
is powered up or enabled, regardless of the current speed/mode of the bus. If
this bit is 1, the card is capable of running at 66 MHz conventional mode. If this
bit is 0, the card is only capable of 33 MHz conventional mode operation. This
bit is valid only when the slot is occupied and powered or enabled.
8
7
RO
RO
RO
RO
x
x
x
x
MRL Sensor (HP_MRL): This bit reports the current state of the MRL as
reported by the de-bounced MRL Sensor input signal. If this bit is 1, the MRL
Sensor is reporting that the MRL is open. If this bit is 0, the MRL Sensor is
reporting that the MRL is closed.
Attention Button (ATTBUT): This bit reports the current state of the de-
bounced Attention Button input signal for this slot. If this bit is 1, the Attention
Button is being pressed. If this bit is 0, the Attention Button is not being
pressed.
6
Power Fault (PWRFLT): This bit reports the current state of the power fault
latch in the power controller circuitry for this slot. If this bit is 1, a power fault
(either isolated or connected) has been detected by the power controller
circuitry.
5:4
Attention Indicator State (ATTNIND): This field reports the current state of
the Attention Indicator associated with the slot.
00b Reserved
01b On
10b Blink
11b Off
3:2
RO
x
Power Indicator State (PWRIND): This field reports the current state of the
Power Indicator associated with the slot.
00b Reserved
01b On
10b Blink
11b Off
Intel® 6700PXH 64-bit PCI Hub Datasheet
135
INTEL [ INTEL ]
