Altera Stratix V Avalon-MM Interface for PCIe Solutions Manuel d'utilisateur Page 51
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- Table des matières
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Noté. / 5. Basé sur avis des utilisateurs
Signal Direction Description
rx_st_bar[7:0]
Output The decoded BAR bits for the TLP. Valid for MRd, MWr, IOWR, and
IORD TLPs. Ignored for the completion or message TLPs. Valid
during the cycle in which rx_st_sop is asserted.
The following encodings are defined for Endpoints:
• Bit 0: BAR 0
• Bit 1: BAR 1
• Bit 2: Bar 2
• Bit 3: Bar 3
• Bit 4: Bar 4
• Bit 5: Bar 5
• Bit 6: Reserved
• Bit 7: Reserved
The following encodings are defined for Root Ports:
• Bit 0: BAR 0
• Bit 1: BAR 1
• Bit 2: Primary Bus number
• Bit 3: Secondary Bus number
• Bit 4: Secondary Bus number to Subordinate Bus number
window
• Bit 5: I/O window
• Bit 6: Non-Prefetchable window
• Bit 7: Prefetchable window
rx_st_data[
<n>-1:0]
Output Receive data bus. Note that the position of the first payload
dword depends on whether the TLP address is qword aligned.
The mapping of message TLPs is the same as the mapping of
TLPs with 4-dword headers.
rx_st_eop Output Indicates that this is the last cycle of the TLP when rx_st_valid
is asserted.
rx_st_err
Output Indicates that there is an ECC error in the internal RX buffer.
Active when ECC is enabled. ECC is automatically enabled by the
Quartus II assembler. ECC corrects single-bit errors and detects
double-bit errors on a per byte basis.
When an uncorrectable ECC error is detected, rx_st_err is
asserted for at least 1 cycle while rx_st_valid is asserted.
Altera recommends resetting the Stratix V Hard IP for PCI
Express when an uncorrectable double-bit ECC error is detected.
4-18
Hard IP Status Extension
UG-01097_avmm
2014.12.15
Altera Corporation
64- or 128-Bit Avalon-MM Interface to the Application Layer
Send Feedback
- User Guide 1
- Datasheet 2
- Features 3
- Interface 4
- Release Information 7
- Device Family Support 7
- Altera FPGA 8
- Debug Features 10
- IP Core Verification 10
- Recommended Speed Grades 11
- Running Qsys 14
- Generating the Example Design 15
- Simulating Altera Designs 17
- Time TLP Type Payload 18
- TLP Header 18
- Creating a Quartus II Project 19
- Compiling the Design 19
- Programming a Device 20
- Parameter Settings 21
- Parameter Value Description 22
- Device Capabilities 25
- Error Reporting 26
- Link Capabilities 27
- MSI and MSI-X Capabilities 28
- Power Management 29
- Clock Domains on page 6-5 33
- Application Layer 34
- RX Avalon-MM Master Signals 36
- Clock Signals 41
- Signal Direction Description 42
- Variant Logical Interfaces 49
- Hard IP Status Extension 50
- Field and Bit Map 58
- 0134678951 58
- Bit(s) Field Description 59
- Serial Data Signals 60
- PIPE Interface Signals 64
- Test Signals 69
- Registers 70
- Altera-Defined VSEC Registers 78
- CvP Registers 79
- Address Range Register 83
- Bit Name Access Description 84
- Bits Name Access Description 85
- PCI Express Mailbox Registers 86
- Avalon-MM Mailbox Registers 90
- Address Name Access 91
- Description 91
- Byte Offset 91
- Register Dir Description 91
- Sending a Write TLP 97
- Root Port TLP Data Registers 99
- UG-01097_avmm 100
- 2014.12.15 100
- Related Information 101
- Bits Register Description 102
- Reset and Clocks 105
- Hard IP for PCI Express 106
- Example Design 106
- Clock Domains 109
- Data Rate Frequency 110
- Clock Summary 112
- Interrupts for Endpoints 113
- MSI/MSI‑X Support 115
- MsiIntfc_o[81:0] 116
- MsiControl_o[15:0] 116
- MsixIntfc_o[15:0] 116
- IntxReq_i 116
- IntxAck_o 116
- Error Handling 117
- Physical Layer Errors 118
- Data Link Layer Errors 118
- Transaction Layer Errors 119
- Error Type Description 120
- Status Bit Conditions 123
- IP Core Architecture 125
- Hard IP for PCI Express 126
- Top-Level Interfaces 127
- Avalon-MM Interface 127
- Clocks and Reset 127
- Transceiver Reconfiguration 127
- Interrupts 127
- Data Link Layer 128
- Altera Corporation 129
- Send Feedback 129
- Physical Layer 130
- TX Packets 131
- Avalon‑MM Bridge TLPs 135
- Byte Enable Value Description 136
- PCI Express Avalon-MM Bridge 138
- RX Block 144
- Avalon-MM RX Master Block 144
- TX Block 145
- Interrupt Handler Block 145
- Enable PLL calibration 147
- Throughput Optimization 151
- Throughput of Posted Writes 153
- Design Implementation 155
- CONF_DONE 156
- Endpoint Reset 156
- Root Port Reset 156
- SDC Timing Constraints 157
- Optional Features 159
- ECRC on the RX Path 160
- ECRC on the TX Path 161
- Debugging 163
- Setting Up Simulation 166
- Use Third-Party PCIe Analyzer 168
- BIOS Enumeration Issues 168
- Address[31:2] 169
- Figure A-6: I/O Read Request 171
- 7 6 5 4 3 2 1 0 175
- Core Config 8 4 1 175
- Additional Information 177
- Date Version Changes Made 178
- How to Contact Altera 182
- Typographic Conventions 182
- Visual Cue Meaning 183
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