Altera Arria 10 Avalon-MM Bedienungsanleitung Seite 83
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Bits Name Access Description
[15:0]
AVL_IRQ_Vector
RO Stores the interrupt vector of the system
interconnect fabric. The host software
should read this register after being
interrupted and determine the servicing
priority.
PCI Express Mailbox Registers
The PCI Express Root Complex typically requires write access to a set of PCI Express-to-Avalon-MM
mailbox registers and read-only access to a set of Avalon-MM-to-PCI Express mailbox registers. Eight
mailbox registers are available.
The PCI Express-to-Avalon-MM Mailbox registers are writable at the addresses shown in the following
table. Writing to one of these registers causes the corresponding bit in the Avalon-MM Interrupt
Status register to be set to a one.
Table 6-16: PCI Express-to-Avalon-MM Mailbox Registers, 0x0800–0x081F
Address Name Access Description
0x0800
P2A_MAILBOX0
RW PCI Express-to-Avalon-MM Mailbox 0
0x0804
P2A_MAILBOX1
RW PCI Express-to-Avalon-MM Mailbox 1
0x0808
P2A_MAILBOX2
RW PCI Express-to-Avalon-MM Mailbox 2
0x080C
P2A_MAILBOX3
RW PCI Express-to-Avalon-MM Mailbox 3
0x0810
P2A_MAILBOX4
RW PCI Express-to-Avalon-MM Mailbox 4
0x0814
P2A_MAILBOX5
RW PCI Express-to-Avalon-MM Mailbox 5
0x0818
P2A_MAILBOX6
RW PCI Express-to-Avalon-MM Mailbox 6
0x081C
P2A_MAILBOX7
RW PCI Express-to-Avalon-MM Mailbox 7
The Avalon-MM-to-PCI Express Mailbox registers are read at the addresses shown in the following
table. The PCI Express Root Complex should use these addresses to read the mailbox information after
being signaled by the corresponding bits in the Avalon MM to PCI Express Interrupt Status register.
Table 6-17: Avalon-MM-to-PCI Express Mailbox Registers, 0x0900–0x091F
Address Name Access Description
0x0900 A2P_MAILBOX0 RO Avalon-MM-to-PCI Express Mailbox 0
UG-01145_avmm
2015.05.14
PCI Express Mailbox Registers
6-17
Registers
Altera Corporation
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- Solutions 1
- Contents 2
- Datasheet 7
- Features 8
- Interface 9
- UG-01145_avmm 10
- 2015.05.14 10
- Release Information 12
- Device Family Support 13
- Configurations 13
- Altera FPGA 14
- Debug Features 16
- IP Core Verification 16
- Recommended Speed Grades 17
- Hard IP for PCI Express 19
- Running Qsys 20
- Generating the Example Design 21
- Time TLP Type Payload 23
- TLP Header 23
- Creating a Quartus II Project 24
- Compiling the Design 25
- Programming a Device 25
- Parameter Settings 27
- Parameter Value Description 28
- Interface System Settings 30
- Device Capabilities 34
- Error Reporting 35
- Link Capabilities 36
- MSI and MSI-X Capabilities 37
- Slot Capabilities 38
- Power Management 39
- Application Layer 48
- RX Avalon-MM Master Signals 50
- Clock Signals 55
- Signal Direction Description 56
- Serial Data Signals 60
- PIPE Interface Signals 61
- Test Signals 66
- Registers 67
- Altera-Defined VSEC Registers 75
- CvP Registers 76
- Address Range Register 80
- Bit Name Access Description 81
- Bits Name Access Description 82
- PCI Express Mailbox Registers 83
- Avalon-MM Mailbox Registers 87
- Address Name Access 88
- Description 88
- Byte Offset 88
- Register Dir Description 88
- Sending a Write TLP 93
- Bits Name Access 94
- Root Port TLP Data Registers 95
- Bits Register Description 98
- Related Information 100
- Arria 10 Reset and Clocks 101
- Clock Domains 104
- Clock Summary 106
- Interrupts for Endpoints 107
- MSI/MSI-X Support 109
- MsiIntfc_o[81:0] 110
- MsiControl_o[15:0] 110
- MsixIntfc_o[15:0] 110
- IntxReq_i 110
- IntxAck_o 110
- Error Handling 111
- Physical Layer Errors 112
- Data Link Layer Errors 112
- Transaction Layer Errors 113
- Error Type Description 114
- Status Bit Conditions 117
- Altera Corporation 118
- Send Feedback 118
- IP Core Architecture 119
- Hard IP for PCI Express 120
- Top-Level Interfaces 121
- Avalon-MM Interface 121
- Clocks and Reset 121
- Interrupts 121
- Data Link Layer 122
- Physical Layer 124
- TX Packets 125
- Avalon‑MM Bridge TLPs 129
- Byte Enable Value Description 130
- PCI Express Avalon-MM Bridge 132
- RX Block 138
- Avalon-MM RX Master Block 138
- TX Block 139
- Interrupt Handler Block 139
- Design Implementation 141
- SDC Timing Constraints 142
- Throughput Optimization 143
- Throughput of Posted Writes 145
- Optional Features 147
- ECRC on the RX Path 148
- ECRC on the TX Path 149
- TLP on Applica‐ 150
- TLP on Link Comments 150
- Subscribe 151
- Endpoint Design Example 154
- Root Complex 155
- User Application DMA 155
- Arria 10 Hard IP 155
- BAR/Address Map 156
- Avalon-MM Test Driver Module 157
- DMA Write Cycles 158
- DMA Read Cycles 160
- Offset in DMA Control 162
- Registers (BAR2) 162
- Value Description 162
- Root Port 163
- Variation 163
- (variation_name.v) 163
- Root Port BFM 164
- BFM Configuration Procedures 165
- BFM Request Interface 165
- BFM Memory Map 166
- Offset (Bytes) Description 168
- BFM Procedures and Functions 172
- Location altpcietb_bfm_rdwr.v 173
- Shared Memory Constants 181
- Constant Description 182
- Location 187
- Setting Up Simulation 199
- Debugging 201
- BIOS Enumeration Issues 203
- Frequently Asked Questions 204
- 7 6 5 4 3 2 1 0 205
- Core Config 8 4 1 205
- Additional Information 207
- Date Version Changes Made 208
- How to Contact Altera 210
- Typographic Conventions 211
- Visual Cue Meaning 212
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