
IDT PCI-to-PCI Bridge Registers
PES32NT24xG2 User Manual
20 - 16
January 30, 2013
Notes
PCIEDCTL - PCI Express Device Control (0x048)
Bit
Field
Field
Name
Type Default
Value
Description
0
CEREN
RW
0x0
Correctable Error Reporting Enable.
This bit controls reporting of correctable errors by this func-
tion.
1
NFEREN
RW
0x0
Non-Fatal Error Reporting Enable.
This bit controls reporting of non-fatal errors by this func-
tion.
2
FEREN
RW
0x0
Fatal Error Reporting Enable.
This bit controls reporting of fatal errors by this function.
3
URREN
RW
0x0
Unsupported Request Reporting Enable.
This bit controls reporting of unsupported requests by this
function.
4
ERO
RO
0x0
Enable Relaxed Ordering.
Not applicable. The bridge function does not initiate
requests other than message requests. Message requests
always have the relaxed-ordering bit in the attributes field is
always set to 0b0.
7:5
MPS
RW
0x0
Max Payload Size.
This field sets maximum TLP payload size for the function.
As a receiver, the function must handle TLPs as large as
the set value. As a transmitter, the function must not gener-
ate TLPs exceeding the set value.
This field should be set to a value less than that advertised
by the Maximum Payload Size Supported (MPAYLOAD)
field in the PCI Express Device Capabilities (PCIEDCAP)
register. Setting this field to a value larger than that adver-
tised in the MPAYLOAD field produces undefined results.
Programming of this field is subject to the restrictions out-
lined in section Maximum Payload Size on page 10-2 and
section Maximum Payload Size on page 14-22.
0x0 -(s128) 128 bytes max payload size
0x1 -(s256) 256 bytes max payload size
0x2 -(s512) 512 bytes max payload size
0x3 -(s1024) 1024 bytes max payload size
0x4 -(s2048) 2048 bytes max payload size
0x5 -(s4096) 4096 bytes max payload size
0x6 -reserved (treated as 128 bytes)
0x7 -reserved (treated as 128 bytes)
8
ETFEN
RW
0x0
Extended Tag Field Enable.
Since the bridge never generates a transaction that
requires a completion, this bit has no functional effect on
the device during normal operation.
To aid in debug, when the SEQTAG field is set in the
TLCTL register, this field controls whether tags are gener-
ated in the range from 0 through 31 or from 0 through 255.
9
PFEN
RO
0x0
Phantom Function Enable.
This function does not support phantom function numbers.
Therefore, this field is hardwired to zero.
10
AUXPMEN
RO
0x0
Auxiliary Power PM Enable.
GPIO_ does not implement this capability.
Summary of Contents for PCI Express 89HPES32NT24xG2
Page 20: ...IDT Table of Contents PES32NT24xG2 User Manual x January 30 2013 Notes...
Page 24: ...IDT List of Tables PES32NT24xG2 User Manual xiv January 30 2013 Notes...
Page 28: ...IDT List of Figures PES32NT24xG2 User Manual xviii January 30 2013 Notes...
Page 56: ...IDT PES32NT24xG2 Device Overview PES32NT24xG2 User Manual 1 20 January 30 2013 Notes...
Page 100: ...IDT Switch Core PES32NT24xG2 User Manual 4 22 January 30 2013 Notes...
Page 128: ...IDT Failover PES32NT24xG2 User Manual 6 4 January 30 2013 Notes...
Page 148: ...IDT Link Operation PES32NT24xG2 User Manual 7 20 January 30 2013 Notes...
Page 164: ...IDT SerDes PES32NT24xG2 User Manual 8 16 January 30 2013 Notes...
Page 170: ...IDT Power Management PES32NT24xG2 User Manual 9 6 January 30 2013 Notes...
Page 196: ...IDT Transparent Switch Operation PES32NT24xG2 User Manual 10 26 January 30 2013 Notes...
Page 244: ...IDT SMBus Interfaces PES32NT24xG2 User Manual 12 40 January 30 2013 Notes...
Page 247: ...IDT General Purpose I O PES32NT24xG2 User Manual 13 3 January 30 2013 Notes...
Page 248: ...IDT General Purpose I O PES32NT24xG2 User Manual 13 4 January 30 2013 Notes...
Page 330: ...IDT Switch Events PES32NT24xG2 User Manual 16 6 January 30 2013 Notes...
Page 342: ...IDT Multicast PES32NT24xG2 User Manual 17 12 January 30 2013 Notes...
Page 344: ...IDT Temperature Sensor PES32NT24xG2 User Manual 18 2 January 30 2013 Notes...
Page 384: ...IDT Register Organization PES32NT24xG2 User Manual 19 40 January 30 2013...
Page 492: ...IDT Proprietary Port Specific Registers PES32NT24xG2 User Manual 21 44 January 30 2013 Notes...
Page 588: ...IDT NT Endpoint Registers PES32NT24xG2 User Manual 22 96 January 30 2013 Notes...
Page 710: ...IDT JTAG Boundary Scan PES32NT24xG2 User Manual 25 12 January 30 2013 Notes...
Page 743: ...IDT Usage Models PES32NT24xG2 User Manual 26 33 January 30 2013 Notes...
Page 744: ...IDT Usage Models PES32NT24xG2 User Manual 26 34 January 30 2013 Notes...