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1. Agilex™ 7 Embedded Memory Overview
2. Agilex™ 7 Embedded Memory Architecture and Features
3. Agilex™ 7 Embedded Memory Design Considerations
4. Agilex™ 7 Embedded Memory IP References
5. Agilex™ 7 Embedded Memory Debugging
6. Agilex™ 7 Embedded Memory User Guide Archives
7. Document Revision History for the Agilex™ 7 Embedded Memory User Guide
2.1. Fabric Network-On-Chip (NoC) in Agilex™ 7 M-Series M20K Blocks
2.2. Byte Enable in Agilex™ 7 Embedded Memory Blocks
2.3. Address Clock Enable Support
2.4. Asynchronous Clear and Synchronous Clear
2.5. Memory Blocks Error Correction Code (ECC) Support
2.6. Agilex™ 7 Embedded Memory Clocking Modes
2.7. Agilex™ 7 Embedded Memory Configurations
2.8. Force-to-Zero
2.9. Coherent Read Memory
2.10. Freeze Logic
2.11. True Dual Port Dual Clock Emulator
2.12. Initial Value of Read and Write Address Registers
2.13. Timing/Power Optimization Feature in M20K Blocks
2.14. Agilex™ 7 Supported Embedded Memory IPs
3.1. Consider the Memory Block Selection
3.2. Consider the Concurrent Read Behavior
3.3. Read-During-Write (RDW)
3.4. Consider Power-Up State and Memory Initialization
3.5. Reduce Power Consumption
3.6. Avoid Providing Non-Deterministic Input
3.7. Avoid Changing Clock Signals and Other Control Signals Simultaneously
3.8. Advanced Settings in Quartus® Prime Software for Memory
3.9. Consider the Memory Depth Setting
3.10. M20K Embedded Memory Block Input Clock Quality Requirement
3.11. Consider Registering the Memory Output
4.1.1. Release Information for RAM and ROM Intel® FPGA IPs
4.1.2. RAM: 1-PORT Intel® FPGA IP Parameters
4.1.3. RAM: 2-PORT Intel® FPGA IP Parameters
4.1.4. RAM: 4-PORT Intel® FPGA IP Parameters
4.1.5. ROM: 1-PORT Intel® FPGA IP Parameters
4.1.6. ROM: 2-PORT Intel® FPGA IP Parameters
4.1.7. Changing Parameter Settings Manually
4.1.8. RAM and ROM Interface Signals
4.3.1. Release Information for FIFO Intel® FPGA IP
4.3.2. Configuration Methods
4.3.3. Specifications
4.3.4. FIFO Functional Timing Requirements
4.3.5. SCFIFO ALMOST_EMPTY Functional Timing
4.3.6. FIFO Output Status Flag and Latency
4.3.7. FIFO Metastability Protection and Related Options
4.3.8. FIFO Synchronous Clear and Asynchronous Clear Effect
4.3.9. SCFIFO and DCFIFO Show-Ahead Mode
4.3.10. Different Input and Output Width
4.3.11. DCFIFO Timing Constraint Setting
4.3.12. Coding Example for Manual Instantiation
4.3.13. Design Example
4.3.14. Gray-Code Counter Transfer at the Clock Domain Crossing
4.3.15. Guidelines for Embedded Memory ECC Feature
4.3.16. FIFO Intel® FPGA IP Parameters
4.3.17. Reset Scheme
4.4.1. Release Information for Shift Register (RAM-based) Intel® FPGA IP
4.4.2. Shift Register (RAM-based) Intel® FPGA IP Features
4.4.3. Shift Register (RAM-based) Intel® FPGA IP General Description
4.4.4. Shift Register (RAM-based) Intel® FPGA IP Parameter Settings
4.4.5. Shift Register Ports and Parameters Setting
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4.4.5. Shift Register Ports and Parameters Setting
The following figure below shows the ports and parameters for the Shift Register (RAM-based) Intel® FPGA IP.
The parameter details are only relevant when implementing the IP directly in HDL.
Figure 50. Shift Register (RAM-based) Intel® FPGA IP Ports and Parameters
Name | Required | Description |
---|---|---|
shiftin[] | Yes | Data input to the shifter. Input port WIDTH bits wide. |
clock | Yes | Positive-edge triggered clock. |
clken | No | Clock enable for the clock port. clken defaults to VCC. |
aclr | No | Asynchronously clears the contents of the shift register chain. The shiftout outputs are cleared immediately upon the assertion of the aclr signal. |
sclr | No | Synchronously clears the registered output ports. The shiftout outputs are cleared upon the assertion of the sclr signal at positive clock edge. |
Name | Required | Description |
---|---|---|
shiftout[] | Yes | Output from the end of the shift register. Output port WIDTH bits wide. |
taps[] | Yes | Output from the regularly spaced taps along the shift register. Output port WIDTH * NUMBER_OF_TAPS wide. This port is an aggregate of all the regularly spaced taps (each WIDTH bits) along the shift register. |
Name | Type | Required | Description | |
---|---|---|---|---|
NUMBER_OF_TAPS | Integer | Yes | Specifies the number of regularly spaced taps along the shift register. | |
TAP_DISTANCE | Integer | Yes | Specifies the distance between the regularly spaced taps in clock cycles. This number translates to the number of RAM words that is used. TAP_DISTANCE must be at least 3. | |
WIDTH | Integer | Yes | Specifies the width of the input pattern. | |
POWER_UP_STATE | String | No | Specifies the shift register contents at power-up. Values are CLEARED and DONT_CARE. If omitted, the default is CLEARED. | |
Value | Description | |||
CLEARED | Zero content. | |||
DONT_CARE | Unknown content. M-RAM blocks can be used with this setting. |