Intel® MAX™ 10 Embedded Memory User Guide

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ID 683431
Date 5/05/2023
Public
Document Table of Contents
Document Table of Contents x
1. Intel® MAX® 10 Embedded Memory Overview 2. Intel® MAX® 10 Embedded Memory Architecture and Features 3. Intel® MAX® 10 Embedded Memory Design Consideration 4. RAM: 1-Port IP Core References 5. RAM: 2-PORT IP Core References 6. ROM: 1-PORT IP Core References 7. ROM: 2-PORT IP Core References 8. FIFO IP Core References 9. Shift Register (RAM-based) IP Core References 10. ALTMEMMULT IP Core References 11. Document Revision History for the Intel® MAX® 10 Embedded Memory User Guide
2. Intel® MAX® 10 Embedded Memory Architecture and Features x
2.1. Intel® MAX® 10 Embedded Memory General Features 2.2. Intel® MAX® 10 Embedded Memory Operation Modes 2.3. Intel® MAX® 10 Embedded Memory Clock Modes 2.4. Intel® MAX® 10 Embedded Memory Configurations
2.1. Intel® MAX® 10 Embedded Memory General Features x
2.1.1. Control Signals 2.1.2. Parity Bit 2.1.3. Read Enable 2.1.4. Read-During-Write 2.1.5. Byte Enable 2.1.6. Packed Mode Support 2.1.7. Address Clock Enable Support 2.1.8. Asynchronous Clear
2.1.5. Byte Enable x
2.1.5.1. Byte Enable Controls 2.1.5.2. Data Byte Output 2.1.5.3. RAM Blocks Operations
2.1.7. Address Clock Enable Support x
2.1.7.1. Address Clock Enable During Read Cycle Waveform 2.1.7.2. Address Clock Enable During Write Cycle Waveform
2.1.8. Asynchronous Clear x
2.1.8.1. Resetting Registers in M9K Blocks
2.2. Intel® MAX® 10 Embedded Memory Operation Modes x
2.2.1. Supported Memory Operation Modes
2.3. Intel® MAX® 10 Embedded Memory Clock Modes x
2.3.1. Asynchronous Clear in Clock Modes 2.3.2. Output Read Data in Simultaneous Read and Write 2.3.3. Independent Clock Enables in Clock Modes
2.4. Intel® MAX® 10 Embedded Memory Configurations x
2.4.1. Port Width Configurations 2.4.2. Memory Configurations for Single-Port Modes 2.4.3. Memory Configurations for Dual-Port Modes 2.4.4. Maximum Block Depth Configuration
3. Intel® MAX® 10 Embedded Memory Design Consideration x
3.1. Implement External Conflict Resolution 3.2. Customize Read-During-Write Behavior 3.3. Consider Power-Up State and Memory Initialization 3.4. Control Clocking to Reduce Power Consumption 3.5. Selecting Read-During-Write Output Choices
3.2. Customize Read-During-Write Behavior x
3.2.1. Same-Port Read-During-Write Mode 3.2.2. Mixed-Port Read-During-Write Mode
3.2.2. Mixed-Port Read-During-Write Mode x
3.2.2.1. Mixed-Port Read-During-Write Operation with Dual Clocks
4. RAM: 1-Port IP Core References x
4.1. RAM: 1-Port IP Core Signals For Intel® MAX® 10 Devices 4.2. RAM: 1-Port IP Core Parameters For Intel® MAX® 10 Devices
5. RAM: 2-PORT IP Core References x
5.1. RAM: 2-Ports IP Core Signals (Simple Dual-Port RAM) For Intel® MAX® 10 Devices 5.2. RAM: 2-Port IP Core Signals (True Dual-Port RAM) for Intel® MAX® 10 Devices 5.3. RAM: 2-Port IP Core Parameters for Intel® MAX® 10 Devices
6. ROM: 1-PORT IP Core References x
6.1. ROM: 1-PORT IP Core Signals For Intel® MAX® 10 Devices 6.2. ROM: 1-PORT IP Core Parameters for Intel® MAX® 10 Devices
7. ROM: 2-PORT IP Core References x
7.1. ROM: 2-PORT IP Core Signals for Intel® MAX® 10 Devices 7.2. ROM: 2-Port IP Core Parameters For Intel® MAX® 10 Devices
8. FIFO IP Core References x
8.1. FIFO IP Core Signals for Intel® MAX® 10 Devices 8.2. FIFO IP Core Parameters for Intel® MAX® 10 Devices 8.3. FIFO Functional Timing Requirements 8.4. SCFIFO ALMOST_EMPTY Functional Timing
9. Shift Register (RAM-based) IP Core References x
9.1. Shift Register (RAM-based) IP Core Signals for Intel® MAX® 10 Devices 9.2. Shift Register (RAM-based) IP Core Parameters for Intel® MAX® 10 Devices
10. ALTMEMMULT IP Core References x
10.1. ALTMEMMULT IP Core Signals for Intel® MAX® 10 Devices 10.2. ALTMEMMULT IP Core Parameters for Intel® MAX® 10 Devices
1. Intel® MAX® 10 Embedded Memory Overview
2. Intel® MAX® 10 Embedded Memory Architecture and Features
3. Intel® MAX® 10 Embedded Memory Design Consideration
4. RAM: 1-Port IP Core References
5. RAM: 2-PORT IP Core References
6. ROM: 1-PORT IP Core References
7. ROM: 2-PORT IP Core References
8. FIFO IP Core References
9. Shift Register (RAM-based) IP Core References
10. ALTMEMMULT IP Core References
11. Document Revision History for the Intel® MAX® 10 Embedded Memory User Guide

3.2.1. Same-Port Read-During-Write Mode

The same-port read-during-write mode applies to a single-port RAM or the same port of a true dual-port RAM.

Table 9.  Output Modes for Embedded Memory Blocks in Same-Port Read-During-Write ModeThis table lists the available output modes if you select the embedded memory blocks in the same-port read-during-write mode.
Output Mode Description
"new data"

(flow-through)

The new data is available on the rising edge of the same clock cycle on which the new data is written.

When using New Data mode together with byte enable, you can control the output of the RAM:

  • When byte enable is high, the data written into the memory passes to the output (flow-through).
  • When byte enable is low, the masked-off data is not written into the memory and the old data in the memory appears on the outputs.

Therefore, the output can be a combination of new and old data determined by byteena.

"don't care"

 The RAM outputs reflect the old data at that address before the write operation proceeds.
Figure 8. Same-Port Read-During-Write: New Data Mode
Figure 9. Same Port Read-During-Write: Old Data Mode
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