Aspeed Ast2500 Datasheet New
For engineers migrating from the previous generation, the key deltas are:
| Feature | ASPEED AST2400 | ASPEED AST2500 | | :--- | :--- | :--- | | CPU Clock | 400 MHz / 533 MHz | 800 MHz | | Memory | DDR3 / DDR4 (Limited) | **DDR
The ASPEED AST2500 (specifically the AST2500A2-GP) is the 6th generation of ASPEED's Server Management Processors, designed to provide high-performance remote management solutions for modern server systems. Core Technical Specifications
The AST2500 serves as a Baseboard Management Controller (BMC) with an integrated graphics adapter. Processor: 800MHz ARM11.
Memory Support: Supports up to 1GB of DDR3 (800Mbps) or DDR4 (1600Mbps) SDRAM with a 16-bit data bus width and an ECC option.
Graphics: On-chip PCIe 2D VGA supporting resolutions up to 1920x1200 @ 60Hz (32bpp). Interface: Native PCI Express 2.0 x1. Network: Dual 10/100/1000 Mbps MAC. Storage Interface: SPI flash memory for firmware. Package: 456-pin TFBGA (19mm x 19mm). Key Features
Remote Management: Supports IPMI 2.0 (Intelligent Platform Management Interface) with iKVM (Keyboard, Video, Mouse over IP) and vMedia support.
Video Redirection: High-quality video compression (YUV444/YUV420) at 24 bits for remote monitoring.
USB-over-IP: Includes a USB 2.0 virtual hub controller supporting up to 5 devices.
Security: Features a robust security architecture including secure boot capabilities.
Broad OS Support: Compatible with Windows Server (2008 R2, 2012 R2), RHEL, SLES, Solaris, Ubuntu, FreeBSD, and Fedora. Documentation & Resources
For full technical implementation, you can reference the AST2500/AST2520 A2 Datasheet (833 pages) or the Software Programming Guide. AST2500 - ASPEED Technology
Table_title: AST2500 Table_content: header: | Product Name | AST2500 Advanced PCIe Graphics & Remote Management Processor | row: | ASPEED Technology Inc.
ASPEED AST2500 is the 6th generation Server Management Processor, functioning as a high-performance Baseboard Management Controller (BMC). It is designed to provide comprehensive out-of-band management, allowing administrators to monitor and maintain server systems remotely. Core Specifications
Processor: Features an 800MHz ARM11 core (specifically the ARM1176JZS), offering a significant performance boost over previous generations.
Memory Support: Migrates from DDR3 to DDR4 SDRAM, supporting speeds up to 1600Mbps with a 16-bit bus.
Graphics: Integrated PCIe 2D VGA controller capable of local display redirection up to 1920x1200 @ 60Hz (32bpp) without requiring an additional VGA card. Bus Interface: Native support for PCI Express 2.0. Key Features AST2500 - ASPEED Technology
The ASPEED AST2500 is a 6th-generation Server Management Controller SoC designed for Baseboard Management Controllers (BMC). It is widely utilized in enterprise servers, storage systems, and telecom equipment. It serves as the "brain" of a server's management subsystem, operating independently of the main host CPU to provide remote monitoring and control capabilities. aspeed ast2500 datasheet new
Pro tip from the datasheet: The JTAG port (Section 12) remains active even when the ARM core is halted. You can debug a crashed BMC without power-cycling—invaluable for firmware developers.
Would you like a specific section of the datasheet explained (e.g., PWM fan tachometer, SPI flash controller, or RTC battery backup circuit)?
The ASPEED AST2500 represents a cornerstone in enterprise server management, serving as the 6th generation of ASPEED Technology's advanced PCIe graphics and remote management processors. Designed specifically as a Baseboard Management Controller (BMC), the AST2500 provides system administrators with robust out-of-band management capabilities, ensuring server health and availability even when the primary operating system is unresponsive. Core Technical Specifications
According to the latest AST2500 datasheet, this System-on-Chip (SoC) integrates high-performance computing with specialized management logic:
Processor: Features an ARM11 CPU running at 800MHz, a significant upgrade from previous generations to handle more complex management tasks.
Memory Support: Supports both DDR3 (800Mbps) and DDR4 (1600Mbps) 16-bit SDRAM, offering flexibility for various motherboard architectures and higher data throughput.
Integrated Graphics: Includes a built-in 2D Video Graphic Adapter with a PCIe bus interface, supporting resolutions up to 1920x1200 @ 60Hz.
Connectivity: Dual 10/100/1000M bps MAC for reliable network management.
Packaging: Housed in a 456-pin TFBGA package (19mm x 19mm), maintaining pin compatibility with related models like the AST2510 and AST2520. Key Features and Improvements
The transition from the AST2400 to the AST2500 introduced several critical enhancements for modern data centers: AST2500 - ASPEED Technology
Table_title: AST2500 Table_content: header: | Product Name | AST2500 Advanced PCIe Graphics & Remote Management Processor | row: | ASPEED Technology
ASPEED AST2500 represents a significant milestone in the evolution of Baseboard Management Controllers (BMCs), serving as the sixth generation of server management processors from ASPEED Technology
. Designed to meet the escalating performance demands of modern data centers, the AST2500 integrates advanced computing power with versatile remote management capabilities. Core Processing and Memory Architecture At the heart of the AST2500 is an 800MHz ARM11 processor
, providing a robust foundation for handling complex management tasks independently of the host system's operating system. One of its most notable upgrades from previous generations is the migration from DDR3 to DDR4 memory , supporting speeds up to
. This transition not only enhances performance but also improves energy efficiency, which is critical for large-scale server environments. Key Technical Specifications
The AST2500 is a highly integrated System-on-Chip (SoC) that includes several critical components for server health and local display: Integrated Graphics : It features an on-chip PCIe 2D VGA
controller, allowing for local display output without requiring a separate VGA add-on card, thereby reducing system costs. Expansion and Connectivity : The chip supports For engineers migrating from the previous generation, the
bus interfaces and includes a 64-bit 2D graphics accelerator. Peripheral Support
: It is designed to interface with various board components through PMBus, SGPIO, and IPMB connectors. Remote Management and Security
As a specialized BMC, the AST2500 is a core component for remote server management. It operates through the Intelligent Platform Management Interface (IPMI) , providing system administrators with tools for: Remote KVM (Keyboard, Video, Mouse)
: Enabling full control over the server's graphical console from a remote location. Virtual Media Support
: Allowing administrators to mount ISO images and other media remotely for OS installation or troubleshooting. Power Control
: Facilitating remote power-on, power-off, and reset capabilities. System Health Monitoring
: Constantly tracking sensors for temperature, voltage, and fan speeds to ensure stable operation. Industry Adoption and Evolution
The AST2500 has been widely adopted by major motherboard manufacturers such as Supermicro
, featuring in high-performance platforms like the Intel Xeon Scalable and AMD EPYC series. While newer generations like the
have since been introduced with even higher performance and PCIe Gen3 support, the AST2500 remains a cornerstone of enterprise server management due to its reliability and proven feature set. register-level configurations AST2500 - ASPEED Technology
The ASPEED AST2500: A Deep Dive into the 6th Gen Server Management Powerhouse
The ASPEED AST2500 remains a cornerstone in modern data centers, serving as the 6th generation of ASPEED Technology's world-class Server Management Processors. As a specialized Baseboard Management Controller (BMC), it provides the essential "always-on" intelligence required to monitor system health and manage servers remotely, independent of the operating system. Core Architecture and Performance
The AST2500 introduces significant performance leaps over its predecessors by integrating more powerful processing and faster memory support:
Processor: Features an 800MHz ARM11 core, designed to handle the increasing complexity of server system requirements.
Memory: Migrates to DDR4 1600Mbps support (also supporting DDR3L), allowing for up to 1GB of external memory.
Internal Bus: Utilizes a 128-bit internal DRAM data bus width to ensure high-speed data movement within the controller.
Graphics: Includes an on-chip PCIe 2D VGA engine, providing local display capabilities without the need for expensive add-on VGA cards. Key Technical Specifications Page 856 (Power Sequence) shows a non-intuitive requirement:
The official datasheet and technical manuals from partners like Supermicro and Gigabyte detail the chip's robust feature set: Feature Specification Package Size 19mm x 19mm Interface PCIe Gen2 x1, eSPI (default), LPC Memory Types DDR3L/DDR4 SDRAM (e.g., 128MBx16, 256MBx16, 512MBx16) Networking
Support for RGMII/NCSI for Gigabit Ethernet management ports Error Correction Supports ECC with no extra external memory cost Operating Temp
Standard commercial or industrial ranges (e.g., -40ºC to 70ºC for specific modules) Advanced Capabilities: IPMI and Beyond
The AST2500 is primarily used to implement the Intelligent Platform Management Interface (IPMI). This allows IT professionals to:
Remote Management: Access, monitor, and diagnose servers via Console Redirection and Keyboard/Video/Mouse (KVM) over IP.
P2A Bridge: The chip includes a specialized "PCIe-to-AHB" (P2A) bridge, allowing the host CPU to access hardware resources within a 64KB range inside the BMC for shared memory applications.
Security: While robust, users should note historical vulnerabilities like CVE-2019-6260, which involved improper AHB bridge access, highlighting the importance of regular firmware updates. Software and Driver Support
ASPEED provides dedicated drivers to ensure the AST2500 integrates seamlessly with modern operating systems: AST2500 - ASPEED Technology
The ASPEED AST2500 is a cornerstone of modern data center infrastructure, serving as a 6th-generation Server Management Processor. As a specialized System-on-Chip (SoC), it functions as a Baseboard Management Controller (BMC), providing critical out-of-band management that allows administrators to monitor and control servers regardless of the operating system's state. Core Technical Specifications
According to the latest documentation from ASPEED Technology, the AST2500 introduces several key performance upgrades over its predecessors:
Processor: Features an 800MHz ARM11 embedded CPU, providing the necessary horsepower for advanced remote management tasks.
Memory Support: Supports both DDR3 (800Mbps) and DDR4 (1600Mbps) SDRAM with a 16-bit data bus and optional ECC, accommodating up to 1GB of memory.
Graphics: Includes an on-chip PCIe 2D VGA controller capable of 1920x1200 resolution at 60Hz, eliminating the need for separate VGA add-on cards in server systems.
Connectivity: Equipped with dual 10/100/1000 Mbps MACs for dedicated or shared network access.
Interfaces: Supports modern protocols including PCIe Gen2, eSPI, and PECI 4.0. Strategic Importance in Server Management
The AST2500 is designed to operate independently of the host CPU, enabling "lights-out" management through the Intelligent Platform Management Interface (IPMI 2.0). AST2500 - ASPEED Technology
Page 856 (Power Sequence) shows a non-intuitive requirement: VDD_CORE (1.15V) must rise before VDD_IO (3.3V). Many custom boards get this wrong, leading to latch-up or current leakage. The datasheet is strict: a 0.5ms delay is required. Violate this, and the chip runs hot (up to 15°C higher).
