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Bit(s) Field Description
[6:4] multiple message
enable
This field indicates permitted values for MSI signals. For example,
if “100” is written to this field 16 MSI signals are allocated.
• 3’b000: 1 MSI allocated
• 3’b001: 2 MSI allocated
• 3’b010: 4 MSI allocated
• 3’b011: 8 MSI allocated
• 3’b100: 16 MSI allocated
• 3’b101: 32 MSI allocated
• 3’b110: Reserved
• 3’b111: Reserved
[3:1]
multiple message
capable
This field is read by system software to determine the number of
requested MSI messages.
• 3’b000: 1 MSI requested
• 3’b001: 2 MSI requested
• 3’b010: 4 MSI requested
• 3’b011: 8 MSI requested
• 3’b100: 16 MSI requested
• 3’b101: 32 MSI requested
• 3’b110: Reserved
[0] MSI Enable If set to 0, this component is not permitted to use MSI.
Related Information
• PCI Express Base Specification 2.1 or 3.0
• PCI Local Bus Specification, Rev. 3.0
Serial Interface Signals
Table 4-14: Serial Interface Signals
In the following table, <n> = 1, 2, 4, or 8.
Signal Direction Description
tx_out[<n>-1:0] Output Transmit input. These signals are the serial outputs.
rx_in[<n>-1:0] Input Receive input. These signals are the serial inputs.
Refer to Pin-out Files for Altera Devices for pin-out tables for all Altera devices in .pdf, .txt, and .xls
formats.
UG-01105_avmm
2014.12.15
Serial Interface Signals
4-25
Interfaces and Signal Descriptions
Altera Corporation
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- User Guide 1
- Datasheet 2
- Features 3
- Release Information 6
- Device Family Support 6
- Altera FPGA 7
- IP Core Verification 9
- Debug Features 9
- Recommended Speed Grades 10
- Hard IP for PCI Express 12
- Running Qsys 13
- Generating the Example Design 14
- Programming a Device 18
- Quartus II Programmer 19
- Parameter Settings 20
- Parameter Value Description 21
- Device Capabilities 23
- Error Reporting 24
- Link Capabilities 25
- MSI and MSI-X Capabilities 25
- Power Management 27
- Subscribe 31
- RX Avalon-MM Master Signals 33
- Clock Signals 38
- Reset Signals 38
- Signal Direction Description 39
- Hard IP Status 40
- IntxReq_i 44
- IntAck_o 44
- Hard IP Status Extension 46
- Field and Bit Map 54
- 0134678951 54
- Serial Interface Signals 55
- 9 Ch 18 Ch 56
- Variant Data CMU Clock 57
- PIPE Interface Signals 58
- Test Signals 62
- Registers 63
- Altera-Defined VSEC Registers 71
- CvP Registers 72
- Address Range Register 76
- Bit Name Access Description 77
- Bits Name Access Description 78
- PCI Express Mailbox Registers 79
- Avalon-MM Mailbox Registers 83
- Address Name Access 84
- Description 84
- Byte Offset 84
- Register Dir Description 84
- Sending a Write TLP 90
- Root Port TLP Data Registers 92
- Bits Register Description 95
- Reset and Clocks 98
- Example Design 99
- UG-01105_avmm 100
- 2014.12.15 100
- Clock Domains 102
- Data Rate Frequency 103
- Related Information 103
- Clock Summary 104
- Interrupts for Endpoints 105
- MSI/MSI‑X Support 107
- Qsys System 108
- Error Handling 109
- Physical Layer Errors 110
- Data Link Layer Errors 110
- Transaction Layer Errors 111
- Error Type Description 112
- Status Bit Conditions 115
- IP Core Architecture 117
- Hard IP for PCI Express 118
- Clocks and Reset 119
- Transceiver Reconfiguration 119
- Interrupts 119
- Data Link Layer 120
- Altera Corporation 121
- Send Feedback 121
- Physical Layer 122
- TX Packets 123
- Avalon‑MM Bridge TLPs 127
- Byte Enable Value Description 128
- PCI Express Avalon-MM Bridge 130
- RX Block 136
- Avalon-MM RX Master Block 136
- TX Block 137
- Interrupt Handler Block 137
- Design Implementation 139
- Making Pin Assignments 140
- Optional Features 141
- ECRC on the RX Path 142
- ECRC on the TX Path 143
- Enable PLL calibration 145
- Debugging 148
- Setting Up Simulation 149
- Use Third-Party PCIe Analyzer 150
- BIOS Enumeration Issues 151
- Address[31:2] 152
- Figure A-6: I/O Read Request 154
- 7 6 5 4 3 2 1 0 158
- Core Config 8 4 1 158
- Additional Information 160
- Date Version Changes Made 161
- How to Contact Altera 163
- Typographic Conventions 164
- Visual Cue Meaning 165
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