Altera PCI Compiler Uživatelský manuál Strana 292
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Hodnocené. / 5. Na základě hodnocení zákazníků
7–24 User Guide Version 11.1 Altera Corporation
PCI Compiler October 2011
PCI Target Operation
The read requests are passed through the PCI-to-Avalon
command/write data buffer, so that they maintain their ordering with
respect to the previous write requests.
Memory read requests that match a prefetchable BAR are forwarded to
the interconnect as burst read requests. The size of the burst depends on
the PCI command used:
■ The cacheline wrap mode reads are treated as Single-Cycle Transfers
Only and are always set to a burst length of one. Therefore, one
DWORD is transferred in 32-bit mode, and two DWORDs are transferred
64-bit mode.
■ The PCI memory read and memory read line commands set the burst
count to transfer data up to the next 32-byte address boundary.
Therefore, the burst count is set from 1-8 in 32-bit mode and 1-4 in
64-bit mode. For example, if the least significant byte of the PCI
address is 0x08, the burst count used for 32-bit mode will be 6 and
64-bit mode will be 3.
■ The PCI memory read multiple command sets the burst count to
transfer data up to the second 32-byte boundary. Thus, the burst
count is set from 9-16 in 32-bit mode and 5-8 in 64-bit mode. So, the
maximum number of bytes transferred in the PCI memory read
multiple command is 64-bytes where the end address must be
32-byte aligned. For example, if the least significant byte of the PCI
address is 0x08, the burst count used for 32-bit is 14 and burst count
used for 64-bit is 7. Refer to Table 7–7.
Table 7–7. Burst Size for PCI Target Prefetchable Read Requests
PCI Command Transfers
32-Bit 64-Bit
Burst
Count
Transfer
Size
Burst
Count
Transfer
Size
Any read that specifies
cacheline wrap mode
1 1
1
DWORD
1
2
DWORDs
Memory read and memory
read line
As many to reach address that is
aligned to 32-bytes.
1-8 1-8
DWORDs
1-4 2-8
DWORDs
Memory read multiple Transfers up to 64-bytes so that
the address reaches the second
32-byte boundary.
9-16 9-16
DWORDs
5-8 10-16
DWORDs
- 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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