Altera Stratix V Avalon-MM Interface for PCIe Solutions Manual de usuario Pagina 67
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Signal Direction Description
sim_pipe_rate[1:0]
Output The 2-bit encodings have the following meanings:
• 2’b00: Gen1 rate (2.5 Gbps)
• 2’b01: Gen2 rate (5.0 Gbps)
• 2’b1X: Gen3 rate (8.0 Gbps)
sim_pipe_pclk_in
Input This clock is used for PIPE simulation only, and is derived from
the refclk. It is the PIPE interface clock used for PIPE mode
simulation.
sim_pipe_pclk_out
Output TX datapath clock to the BFM PHY. pclk_out is derived from
refclk and provides the source synchronous clock for TX data
from the PHY.
sim_pipe_clk250_out
Output Used to generate pclk.
sim_pipe_clk500_out
Output Used to generate pclk.
sim_pipe_
ltssmstate0[4:0]
Input and
Output
LTSSM state: The LTSSM state machine encoding defines the
following states:
• 5’b00000: Detect.Quiet
• 5’b 00001: Detect.Active
• 5’b00010: Polling.Active
• 5’b 00011: Polling.Compliance
• 5’b 00100: Polling.Configuration
• 5’b00101: Polling.Speed
• 5’b00110: config.LinkwidthsStart
• 5’b 00111: Config.Linkaccept
• 5’b 01000: Config.Lanenumaccept
• 5’b01001: Config.Lanenumwait
• 5’b01010: Config.Complete
• 5’b 01011: Config.Idle
• 5’b01100: Recovery.Rcvlock
• 5’b01101: Recovery.Rcvconfig
• 5’b01110: Recovery.Idle
• 5’b 01111: L0
• 5’b10000: Disable
• 5’b10001: Loopback.Entry
• 5’b10010: Loopback.Active
• 5’b10011: Loopback.Exit
• 5’b10100: Hot.Reset
• 5’b10101: L0s
• 5’b11001: L2.transmit.Wake
4-34
PIPE Interface Signals
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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