IDT 89HPES24N3A, User Manual

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IDT Configuration Registers
PES24N3A User Manual 9 - 37 April 10, 2008
Notes
ECFGDATA - Extended Configuration Space Access Data (0x0FC)
Advanced Error Reporting (AER) Enhanced Capability
AERCAP - AER Capabilities (0x100)
AERUES - AER Uncorrectable Error Status (0x104)
Bit
Field
Field
Name
Type
Default
Value
Description
31:0 DATA RW 0x0 Configuration Data. A read from this field will return the
configuration space register value pointed to by the ECF-
GADDR register. A write to this field will update the contents
of the configuration space register pointed to by the ECF-
GADDR register with the value written. For both reads and
writes, the byte enables correspond to those used to access
this field.
When the ECFGADDR register points to the ECFGDATA
register, then reads from ECFGDATA return zero and writes
are ignored. When the ECFGADDR register points to itself,
writes to the ECFGDATA register modify the contents of the
ECFGADDR register.
SMBus reads of this field return a value of zero and SMBus
writes have no effect.
Bit
Field
Field
Name
Type
Default
Value
Description
15:0 CAPID RO 0x1 Capability ID. The value of 0x1 indicates an advanced error
reporting capability structure.
19:16 CAPVER RO 0x1 Capability Version. The value of 0x1. indicates compatibil-
ity with version 1 of the specification.
31:20 NXTPTR RWL 0x200 Next Pointer.
Bit
Field
Field
Name
Type
Default
Value
Description
0 UDEF RW1C 0x0
Sticky
Undefined. This bit is no longer used in this version of the
specification.
3:1 Reserved RO 0x0 Reserved field.
4 DLPERR RW1C 0x0
Sticky
Data Link Protocol Error Status. This bit is set when a
data link layer protocol error is detected.
5 SDOENERR RW1C 0x0
Sticky
Surprise Down Error Status. This bit is set when a sur-
prise down error is detected.
This bit is always zero if the SDERR bit in the PCIELCAP
register is not set.
11:6 Reserved RO 0x0
Sticky
Reserved field.
12 POISONED RW1C 0x0
Sticky
Poisoned TLP Status. This bit is set when a poisoned TLP
is detected.
13 FCPERR RW1C 0x0
Sticky
Flow Control Protocol Error Status. This bit is set when a
flow control protocol error is detected.