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2–4 Chapter 2: Getting Started
MegaWizard Plug-In Manager Flow
External Memory Interface Handbook Volume 3 December 2010 Altera Corporation
Section II. DDR3 SDRAM Controller with ALTMEMPHY IP User Guide
8. For this example system, ensure all the other modules are clocked on the
altmemddr_sysclk
, to avoid any unnecessary clock-domain crossing logic.
9. Click Generate.
1 Among the files generated by SOPC Builder is the Quartus II IP File (.qip).
This file contains information about a generated IP core or system. In most
cases, the .qip file contains all of the necessary assignments and
information required to process the MegaCore function or system in the
Quartus II compiler. Generally, a single .qip file is generated for each SOPC
Builder system. However, some more complex SOPC Builder components
generate a separate .qip file. In that case, the system .qip file references the
component .qip file.
10. Compile your design, refer to “Compiling and Simulating” on page 4–1.
MegaWizard Plug-In Manager Flow
The MegaWizard Plug-In Manager flow allows you to customize the DDR3 SDRAM
Controller with ALTMEMPHY or the stand-alone PHY with the ALTMEMPHY
megafunction, and manually integrate the function into your design.
f For more information about the MegaWizard Plug-In Manager, refer to the Quartus II
Help.
Specifying Parameters
To specify parameters using the MegaWizard Plug-In Manager flow, perform the
following steps:
1. In the Quartus II software, create a new Quartus II project with the New Project
Wizard.
2. On the Tools menu, click MegaWizard Plug-In Manager to start the MegaWizard
Plug-In Manager.
■ The DDR3 SDRAM Controller with ALTMEMPHY is in the Interfaces folder
under the External Memory folder.
■ The ALTMEMPHY megafunction is in the I/O folder.
1 The <variation name> must be a different name from the project name and
the top-level design entity name.
3. Specify the parameters on all pages in the Parameter Settings tab.
f For detailed explanation of the parameters, refer to the “Parameter
Settings” on page 3–1.
4. On the EDA tab, turn on Generate simulation model to generate an IP functional
simulation model for the MegaCore function in the selected language.
An IP functional simulation model is a cycle-accurate VHDL or Verilog HDL
model produced by the Quartus II software.
- User Guide 1
- Contents 3
- Chapter 8. Latency 5
- Chapter 9. Timing Diagrams 5
- 1. About This IP 7
- Release Information 8
- Device Family Support 8
- 1–4 Chapter 1: About This IP 10
- Features 10
- ALTMEMPHY Megafunction 11
- Note to Table 1–4: 12
- Note to Table 1–5: 12
- High-Performance Controller 13
- System Requirements 14
- Installation and Licensing 14
- Free Evaluation 15
- 1–10 Chapter 1: About This IP 16
- 2. Getting Started 17
- Specifying Parameters 18
- SOPC Builder Flow 19
- Generated Files 22
- 3. Parameter Settings 29
- Memory Settings 30
- ALTMEMPHY Parameter Settings 31
- Note to Table 3–3: 34
- Note to Table 3–5: 38
- PHY Settings 39
- Board Settings 41
- Controller Settings 42
- 4. Compiling and Simulating 47
- Compiling the Design 48
- Simulating the Design 50
- Calibration 55
- DDR3 SDRAM Without Leveling 55
- Step 6: Postamble 57
- Step 7: Prepare for User Mode 57
- DDR3 SDRAM With Leveling 59
- Step 2: Write Leveling 62
- Address and Command Datapath 63
- ° ), or the inverted 64
- Clock and Reset Management 65
- Clock Management 65
- Note to Table 5–1: 67
- Reset Management 69
- Read Datapath 70
- Write Datapath 74
- ALTMEMPHY Signals 75
- Notes to Table 5–3: 77
- Note to Table 5–3: 79
- Notes to Table 5–5: 82
- PHY-to-Controller Interfaces 83
- Notes to Figure 5–17: 86
- Notes to Figure 5–18: 87
- Notes to Figure 5–19: 88
- Notes to Figure 5–20: 89
- Preliminary Steps 90
- Design Considerations 90
- Clocks and Resets 90
- Using a Custom Controller 91
- 6. Functional Description— 95
- Command FIFO Buffer 96
- PHY Interface Logic 98
- Control Logic 99
- Figure 6–3. ECC Block Diagram 100
- Block Description 101
- Interrupts 102
- Partial Writes 102
- Partial Bursts 103
- ECC Latency 103
- ECC Registers 104
- ECC Register Bits 106
- Example Top-Level File 108
- Example Driver 109
- Top-level Signals Description 110
- or vhd file 111
- Note to Table 6–14: 114
- 7. Functional Description— 117
- Write Data FIFO Buffer 120
- Command Queue 120
- Bank Management Logic 120
- Timer Logic 121
- Command-Issuing State Machine 121
- ODT Generation Logic 122
- User-Refresh Commands 122
- Multi-Cast Write 122
- Low-Power Mode Logic 123
- Error Correction Coding (ECC) 123
- Notes to Table 7–7: 133
- Register Maps Description 134
- ALTMEMPHY Register Map 135
- Controller Register Map 137
- 8. Latency 143
- 8–2 Chapter 8: Latency 144
- Chapter 8: Latency 8–3 145
- 8–4 Chapter 8: Latency 146
- 9. Timing Diagrams 147
- Auto-Precharge 148
- [1] [2] [3] 148
- User Refresh 149
- Initialization Timing 156
- Calibration Timing 158
- AABBCCDD AABBCCDD AABBCCDD 162
- EEFF0011 EEFF0011 EEFF0011 162
- [1] [3] [4][2] 166
- Half-Rate Read With Gaps 168
- Half-Rate Write With Gaps 169
- [2][1] [5] [4] [6][3] 170
- [12][6][7][10] [11] 172
- Additional Information 175
- Typographic Conventions 176
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