AN 896: Multi-Rail Power Sequencer and Monitor Reference Design

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ID 683778
Date 4/24/2025
Public
Document Table of Contents
Document Table of Contents x
1. Overview of the Multi-Rail Power Sequencer and Monitor Reference Design 2. Architecture and Operation of the Multi-Rail Power Sequencer and Monitor Reference Design 3. Implementation and Simulation of the Multi-Rail Power Sequencer and Monitor Reference Design 4. Functionality Level and Resource Utilization Estimates 5. PCB Implementation for the Multi-Rail Power Sequencer and Monitor Reference Design 6. Document Revision History for AN 896: Multi-Rail Power Sequencer and Monitor Reference Design
1. Overview of the Multi-Rail Power Sequencer and Monitor Reference Design x
1.1. Features of the Reference Design 1.2. Structure of the Reference Design Archive
2. Architecture and Operation of the Multi-Rail Power Sequencer and Monitor Reference Design x
2.1. Reference Design Architecture 2.2. Reference Design Component Blocks 2.3. Design Components and Parameter Options 2.4. Output Voltage Data Formats and Related Parameters
2.3. Design Components and Parameter Options x
2.3.1. Reset Sequencer (Reset_Sequencer) 2.3.2. Modular ADC Core Intel® FPGA IP (ADC_Core) 2.3.3. Sequencer Monitor (Sequencer_Monitor) 2.3.4. PMBus* Slave to Avalon®-MM Master Bridge (PMBus_Slave) 2.3.5. Power Sequencer (Sequencer_Core) 2.3.6. MAX10 OCFlash Controller (NVRAM_Controller) 2.3.7. On-Chip Flash Intel® FPGA IP (NVRAM_OC_Flash) 2.3.8. Other Design Components
2.3.3. Sequencer Monitor (Sequencer_Monitor) x
2.3.3.1. Sequencer Monitor Parameter Settings
2.3.5. Power Sequencer (Sequencer_Core) x
2.3.5.1. Power Sequencer Parameter Settings
2.3.6. MAX10 OCFlash Controller (NVRAM_Controller) x
2.3.6.1. MAX10 OCFlash Controller Parameter Settings
2.3.8. Other Design Components x
2.3.8.1. POR Pulse (POR_Pulse) 2.3.8.2. Reset to Conduit Adapter (Reset2Conduit) 2.3.8.3. pll_lock_splitter (PLL_LockSplit) 2.3.8.4. Avalon®-MM Sequencer (AVMM_Initializer) 2.3.8.5. Alignment Bridge (PM2AVMM_Align)
3. Implementation and Simulation of the Multi-Rail Power Sequencer and Monitor Reference Design x
3.1. Customizing and Generating the Design Example 3.2. Updating the Schematic After Customizing the Design 3.3. Assigning Pins and Compiling the Design Example 3.4. Testbench Simulation to Understand Design Behavior 3.5. Controlling the Sequencer using System Console
3.3. Assigning Pins and Compiling the Design Example x
3.3.1. Pin Description
3.4. Testbench Simulation to Understand Design Behavior x
3.4.1. Generating the Testbench Simulation 3.4.2. Running the Testbench Simulation
3.5. Controlling the Sequencer using System Console x
3.5.1. Interacting with the Sequencer through System Console
4. Functionality Level and Resource Utilization Estimates x
4.1. PMBus* Commands Implementation 4.2. PMBus* STATUS Command Descriptions 4.3. Resource Utilization of the Multi-Rail Power Sequencer and Monitor Reference Design
4.2. PMBus* STATUS Command Descriptions x
4.2.1. STATUS_BYTE Command Description 4.2.2. STATUS_WORD Command Description 4.2.3. STATUS_VOUT Command Description 4.2.4. STATUS_INPUT Command Description 4.2.5. STATUS_CML Command Description 4.2.6. STATUS_OTHER Command Description
1. Overview of the Multi-Rail Power Sequencer and Monitor Reference Design
2. Architecture and Operation of the Multi-Rail Power Sequencer and Monitor Reference Design
3. Implementation and Simulation of the Multi-Rail Power Sequencer and Monitor Reference Design
4. Functionality Level and Resource Utilization Estimates
5. PCB Implementation for the Multi-Rail Power Sequencer and Monitor Reference Design
6. Document Revision History for AN 896: Multi-Rail Power Sequencer and Monitor Reference Design

4.2. PMBus* STATUS Command Descriptions

The various STATUS commands provide comprehensive visibility for fault conditions that are monitored by the device. This functionality is implemented according to the PMBus* specification, but is described below for completeness.

The STATUS_BYTE command contains the most important error conditions. STATUS_WORD provides visibility of the STATUS_BYTE in the lower byte, as well as the status for all other conditions in the upper byte. Both commands are read-only indicators for the current state of their respective lower-level STATUS registers (STATUS_VOUT, STATUS_INPUT, STATUS_CML, and STATUS_OTHER). Errors may be cleared, either by writing to the asserted bits in these lower-level status registers, or by asserting CLEAR_STATUS, which is a global command that clears out all currently latched errors.


Section Content
STATUS_BYTE Command Description
STATUS_WORD Command Description
STATUS_VOUT Command Description
STATUS_INPUT Command Description
STATUS_CML Command Description
STATUS_OTHER Command Description

Level Two Title