IDT 89HPES64H16G2 User Manual page 222

IDT PCI to PCI Bridge and Proprietary Port Specific Registers
Bit Field
Field Name
8:6
11:9
12
13
14
15 RBERR
17:16 Reserved
25:18 CSPLV
27:26 CSPLS
31:28 Reserved
1.
NOTE: Set_Slot_Power_Limit messages received by a port implicitly target all functions in the port.
PES64H16G2 User Manual
Default
Type
Value
E0AL RO 0x0
E1AL RO 0x0
ABP RO 0x0
AIP RO 0x0
PIP RO 0x0
RO 0x1
RO 0x0
RO 0x0
RO 0x0
RO 0x0
Description
Endpoint L0s Acceptable Latency. This field indicates the
acceptable total latency that an endpoint can withstand due to tran-
sition from the L0s state to the L0 state.
The value is hardwired to 0x0 as this field is only applicable to end-
point functions.
Endpoint L1 Acceptable Latency. This field indicates the accept-
able total latency that an endpoint can withstand due to transition
from the L1 state to the L0 state.
The value is hardwired to 0x0 as this field is only applicable to end-
point functions.
Attention Button Present. In PCI Express base 1.0a when set,
this bit indicates that an Attention Button is implemented on the
card/module.
The value of this field is undefined in PCI Express 2.0 specification.
Attention Indicator Present. In PCI Express base 1.0a when set,
this bit indicates that an Attention Indicator is implemented on the
card/module.
The value of this field is undefined in PCI Express 2.0 specification.
Power Indicator Present. In PCI Express base 1.0a when set,
this bit indicates that a Power Indicator is implemented on the card/
module.
The value of this field is undefined in PCI Express 2.0 specification
Role Based Error Reporting. This bit is set to indicate that the
switch supports error reporting as defined in PCI Express 2.0 spec-
ification.
Reserved field.
Captured Slot Power Limit Value. This field in combination with
the Slot Power Limit Scale value, specifies the upper limit on power
supplied by the slot. Power limit (in Watts) calculated by multiplying
the value in this field by the value in the Slot Power Limit Scale
field.
The value of this field is set by a Set_Slot_Power_Limit Message
and is only applicable for an upstream port.
A port in unattached mode does not modify this field as a result of
receiving a Set_Slot_Power_Limit Message.
This field is always zero in unattached or downstream ports.
Captured Slot Power Limit Scale. This field specifies the scale
used for the Slot Power Limit Value.
The value of this field is set by a Set_Slot_Power_Limit Message
and is only applicable for an upstream port.
0 - (v1) 1.0x
1 - (v1p1) 0.1x
2 - (v0p01) 0.01x
3 - (v0p001x) 0.001x
A port in unattached mode does not modify this field as a result of
receiving a Set_Slot_Power_Limit Message.
This field is always zero in unattached or downstream ports.
Reserved field.
16 - 12
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April 5, 2013