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Bits Description Default Value Access
[15] Role-Based error reporting supported 1 RO
[17:16] Reserved 0 RO
[27:18] Captured Slot Power Limit Value and Scale: Not
implemented
0 RO
[28] FLR Capable. Indicates that the device has FLR capability Set in Qsys RO
[31:29 ] Reserved 0 RO
Table 5-14: PCI Express Device Control and Status Register - 0x088
Bits Description Default Value Access
[0 Enable Correctable Error Reporting. 0 RW
[1] Enable Non-Fatal Error Reporting. 0 RW
[2] Enable Fatal Error Reporting. 0 RW
[3] Enable Unsupported Request (UR) Reporting. 0 RW
[4] Enable Relaxed Ordering. Set in Qsys RW
[7:5] Maximum Payload Size. 0 (128 bytes) RW
[8] Extended Tag Field Enable. 0 RW
[10:9] Reserved. 0 RO
[11] Enable No-Snoop. 1 RW
[14:12] Maximum Read Request Size. 2 (512 bytes) RW
[15] Function-Level Reset. Writing a 1 generates a Function-Level
Reset for this Function if the FLR Capable bit of the Device
Capabilities Register is set. This bit always reads as 0.
0 RW
[16] Correctable Error detected. 0 RW1C
[17] Non-Fatal Error detected. 0 RW1C
[18] Fatal Error detected. 0 RW1C
[19] Unsupported Request detected. 0 RW1C
[20] Reserved. 0 RO
[21] Transaction Pending: Indicates that a Non- Posted request
issued by this Function is still pending.
0 RO
Table 5-15: Link Capabilities Register - 0x08C
Bits Description Default Value Access
[3:0] Maximum Link Speed 1: 2.5 GT/s
2: 5.0 GT/s
3: 8.0 GT/s
RO
5-12
PCI Express Capability Structure
UG-01097_sriov
2014.12.15
Altera Corporation
Registers
Send Feedback
- User Guide 1
- Datasheet 2
- Features 3
- Interface 4
- Release Information 7
- Device Family Support 7
- Example Designs 8
- Debug Features 8
- IP Core Verification 9
- Recommended Speed Grades 10
- Related Information 11
- Subscribe 12
- Qsys Subsystem Description 13
- Parameter Value 15
- Directory Description 16
- Parameter Settings 21
- Parameter Value Description 22
- SR-IOV System Settings 24
- Interrupt Capabilities 27
- Device Capabilities 29
- Error Reporting 30
- Link Capabilities 31
- Slot Capabilities 32
- Power Management 33
- PHY Characteristics 34
- Simulation Options 35
- Avalon-ST TX Interface 37
- Signal Direction Description 38
- Avalon‑ST RX Interface 40
- BAR Hit Signals 43
- Completion Side Band Signals 45
- Signal Directi 46
- Description 46
- Clock Signals 48
- Interrupt Interface 49
- Implementing MSI-X Interrupts 55
- LMI Signals 57
- Serial Data Signals 65
- Test Signals 70
- PIPE Interface Signals 71
- Byte Address 77
- MSI Registers 80
- MSI-X Capability Structure 82
- VF Device ID Register 96
- Page Size Registers 96
- Lane Error Status Register 98
- Bits Register Description 99
- Default Value 99
- Altera Corporation 100
- Registers 100
- Send Feedback 100
- Virtual Function Registers 102
- Name Description 103
- Reset and Clocks 107
- Hard IP for PCI Express 108
- Example Design 108
- UG-01097_sriov 109
- 2014.12.15 109
- Function Level Reset (FLR) 111
- Clock Domains 111
- Clock Summary 114
- Interrupts 115
- Error Handling 118
- Physical Layer Errors 119
- Data Link Layer Errors 119
- Transaction Layer Errors 120
- Error Type Description 121
- Status Bit Conditions 123
- IP Core Architecture 125
- Top-Level Interfaces 126
- Clocks and Reset 126
- Transceiver Reconfiguration 126
- Data Link Layer 127
- Physical Layer 129
- TX Packets 130
- Design Implementation 136
- CONF_DONE 137
- Endpoint Reset 137
- Root Port Reset 137
- SDC Timing Constraints 138
- Debugging 143
- Setting Up Simulation 146
- Use Third-Party PCIe Analyzer 148
- BIOS Enumeration Issues 148
- Address[31:2] 149
- Figure A-6: I/O Read Request 151
- Additional Information 155
- Typographic Conventions 156
- Visual Cue Meaning 157
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