Altera PCI Compiler Bedienungsanleitung Seite 199
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Altera Corporation User Guide Version 11.1 3–125
October 2011
Functional Description
Abnormal Master Transaction Termination
An abnormal transaction termination is one in which the local side did
not explicitly request the termination of a transaction by asserting the
lm_lastn signal. A master transaction can be terminated abnormally for
several reasons. This section describes the behavior of the pci_mt64 and
pci_mt32 functions during the following abnormal termination
conditions:
■ Latency timer expires
■ Target retry
■ Target disconnect without data
■ Target disconnect with data
■ Target abort
■ Master abort
Latency Timer Expires
The PCI specification requires that the master device end the transaction
as soon as possible after the latency timer expires and the gntn signal is
deasserted. The pci_mt64 and pci_mt32 functions adhere to this rule,
and when they end the transaction because the latency timer expired,
they assert lm_tsr[4] (tsr_lat_exp) until the beginning of the next
master transaction.
1 The PCI MegaCore functions allow the option of disabling the
latency timer for embedded applications. Refer to “Disable
Master Latency Timer” on page 2–6 for more information.
Retry
The target issues a retry by asserting stopn and devseln during the first
data phase. When the pci_mt64 and pci_mt32 MegaCore functions
detect a retry condition (refer to “Retry” on page 3–77 for details), they
end the cycle and assert lm_tsr[5] until the beginning of the next
transaction. This process informs the local-side device that it has ended
the transaction because the target issued a retry.
1 The PCI specification requires that the master retry the same
transaction with the same address at a later time. It is the
responsibility of the local-side application to ensure that this
requirement is met.
- PCI Compiler 1
- User Guide 1
- UG-PCICOMPILER-4.12 3
- Chapter 2. Parameter Settings 6
- Chapter 4. Testbench 7
- Chapter 5. Getting Started 8
- Chapter 6. Parameter Settings 8
- Chapter 8. Testbench 10
- Additional Information 11
- Contents 12
- About PCI Compiler 13
- Release 14
- Information 14
- Device Family 14
- Features 15
- General 17
- Description 17
- PCI Testbench 18
- General Description 20
- Selecting the 21
- Appropriate 21
- Flow for Your 21
- Compliance 22
- Performance 23
- Utilization 23
- Installation and 29
- Licensing 29
- <path> 30
- OpenCore Plus Evaluation 31
- Installation and Licensing 32
- Section I. PCI Compiler 33
- With MegaWizard Plug-In 33
- Manager Flow 33
- 1. Getting Started 35
- PCI MegaCore 36
- Function Design 36
- Launch IP Toolbench 38
- Step 1: Parameterize 39
- Step 2: Set Up Simulation 41
- Step 3: Generate 41
- The Quartus II 46
- Simulation Files 46
- Master Simulation Files 47
- Target Simulation Files 49
- PCI Timing 52
- Using the 53
- Reference 53
- Designs 53
- Using the Reference Designs 58
- 2. Parameter Settings 59
- Advanced PCI 61
- MegaCore 61
- Function 61
- Master Features 62
- Variation File 65
- Parameters 65
- HARDWIRE_BARn 67
- HARDWIRE_EXP_ROM 67
- MAX_64_BAR_RW_BITS 68
- NUMBER_OF_BARS 68
- ENABLE_BITS 68
- INTERRUPT_PIN_REG 69
- PCI_66MHZ_CAPABLE 69
- HARDWIRE_BARn_ENA 69
- HARDWIRE_EXP_ROM_ENA 69
- EXP_ROM_ENA 69
- CAP_LIST_ENA 70
- CIS_PTR_ENA 70
- INTERRUPT_ACK_ENA 70
- INTERNAL_ARBITER_ENA (1) 70
- MW_CBEN_ENA 73
- Variation File Parameters 74
- 3. Functional Description 75
- PCI Bus Signals 85
- "). The signals lm_ackn 93
- Target Local-Side Signals 94
- Master Local-Side Signals 98
- PCI Bus 101
- Commands 101
- Configuration 102
- Registers 102
- Vendor ID Register 105
- Device ID Register 105
- Command Register 106
- Status Register 107
- Revision ID Register 108
- Class Code Register 109
- Cache Line Size Register 109
- Latency Timer Register 110
- Header Type Register 110
- Base Address Registers 111
- Reserved 113
- CardBus CIS Pointer Register 114
- Subsystem Vendor ID Register 114
- Subsystem ID Register 115
- Capabilities Pointer 116
- Interrupt Line Register 116
- Interrupt Pin Register 117
- Minimum Grant Register 117
- Target Mode 118
- Operation 118
- October 2011 119
- Functional Description 119
- Target Read Transactions 122
- PCI Compiler October 2011 124
- Target Mode Operation 124
- Note Figure 3–7: 124
- Clock Cycle Event 125
- Note to Figure 3–8: 128
- Note to Figure 3–9: 129
- Note to Figure 3–10: 130
- Note to Figure 3–12: 134
- I/O Read Transactions 135
- Target Write Transactions 137
- Note to Figure 3–15: 138
- Note to Figure 3–16: 142
- Note to Figure 3–17: 143
- Note to Figure 3–18: 144
- Note to Figure 3–19: 146
- Note to Figure 3–20: 148
- I/O Write Transactions 149
- Note to Figure 3–23: 152
- Disconnect 153
- Note to Figure 3–24: 154
- Note to Figure 3–25: 155
- Note to Figure 3–26: 156
- Note to Figure 3–27: 157
- Target Abort 160
- Note to Figure 3–30: 161
- Master Mode 162
- Master Mode Operation 164
- PCI Bus Parking 166
- Master Read Transactions 167
- Notes to Figure 3–31: 169
- Note to Figure 3–32: 173
- Notes to Figure 3–33: 174
- Notes to Figure 3–34: 176
- Notes to Figure 3–35: 178
- Note to Figure 3–36: 179
- Master Write Transactions 182
- Notes to Figure 3–38: 184
- Note to Figure 3–39: 188
- Notes to Figure 3–40: 189
- Notes to Figure 3–41: 191
- Notes to Figure 3–42: 193
- Note to Figure 3–43: 194
- Latency Timer Expires 199
- Disconnect Without Data 200
- Disconnect with Data 200
- Master Abort 200
- Host Bridge 201
- Host Bridge Operation 202
- Note to Figure 3–46: 202
- Note to Figure 3–47: 204
- Addressing 205
- Dual Address 205
- Cycle (DAC) 205
- 4. Testbench 211
- File(1) Description 213
- Testbench 216
- Specifications 216
- PROCEDURES and TASKS Sections 217
- Refer to the 218
- INITIALIZATION Section 218
- USER COMMANDS Section 218
- FILE IO section 223
- PROCEDURES and TASKS sections 223
- Bus Monitor (monitor) 224
- Clock Generator (clk_gen) 224
- Local Reference 225
- Description 226
- Local Target 227
- DMA Engine 227
- Local Master 229
- Prefetch 229
- LPM RAM 229
- Simulation Flow 230
- October 2011 PCI Compiler 231
- Section II. PCI Compiler 233
- With SOPC Builder Flow 233
- 5. Getting Started 235
- Builder Flow 236
- Walkthrough 236
- Set Up the PCI-Avalon Bridge 239
- Getting Started 241
- Simulate the 245
- Compile the 247
- Program a 248
- Upgrading 249
- Systems from a 249
- Previous 249
- Program a Device 250
- 6. Parameter Settings 251
- System Options-1 252
- PCI Target Performance 253
- PCI Master Performance 255
- Value of 256
- Multiple 256
- Pending Reads 256
- Interconnect 257
- Options-2 259
- PCI Bus Arbiter 260
- Parameter Settings 263
- PCI Configuration 264
- 0 . . . 0 265
- 0 AV BASE 265
- X X X X X . . . X 265
- Avalon Configuration 268
- 7. Functional Description 269
- PCI-Avalon Bridge Blocks 270
- Avalon-MM Ports 271
- PCI MegaCore Function 273
- PCI Operational Modes 274
- Functional Overview 276
- ■ PCI Host-Bridge Device mode 277
- Performance Profiles 279
- Target Performance 280
- Master Performance 280
- Interface 281
- PCI Bus Arbiter Signals 282
- PCI Target 283
- Non-Prefetchable Operations 285
- I/O Write Operations 287
- PCI Target Operation 288
- Prefetchable Operations 289
- Prefetchable Write Operations 290
- Prefetchable Read Operations 291
- PCI Master 295
- Avalon-to-PCI Write Requests 299
- Avalon-to-PCI Read Requests 300
- PCI Master Operation 304
- Ordering of Requests 306
- ■ DRC—Delayed read completion 307
- PCI Host-Bridge 313
- Altera-Provided 313
- Interrupts 314
- Control & Status 315
- PCI Interrupt Status Register 317
- PCI Interrupt Enable Register 319
- PCI Mailbox Register Access 320
- “Avalon 322
- Configuration” on page 6–16 322
- Bit Name 326
- MASTER_ENABLE_CURRENT_VALUE 327
- A2P_WRITE_IN_PROGRESS 327
- INTAN_CURRENT_VALUE 327
- CraIrq_o) to be asserted 328
- 8. Testbench 331
- BAR0 x10 342
- Arbiter (arbiter) 344
- Pull Up (pull_up) 344
- Appendix A. Using PCI 347
- Constraint File Tcl Scripts 347
- Simultaneous 348
- Switching Noise 348
- Considerations 348
- Additional 349
- -no_compile 353
- -no_pinouts 353
- -pin_prefix 353
- -pin_suffix 353
- Assignments 354
- Version of PCI 354
- Compiler 354
- How to Contact 358
- Typographic 359
- Conventions 359
- Typographic Conventions 360
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