In the world of modern computing, the demand for efficient, reliable, and high-performance BMCs (Baseboard Management Controllers) has never been higher. One of the leading players in this market is ASpeed Technology, a renowned manufacturer of BMCs and other innovative semiconductor solutions. Among their impressive lineup of products, the ASpeed AST2500 stands out as a highly sought-after BMC, widely used in various applications, from data centers and cloud computing to industrial and embedded systems.
| Specification | Details | |---|---| | | ARM1176JZ-S, 800 MHz, single core | | Memory Interface | DDR3 / DDR4 SDRAM, 16‑bit width, up to 1 GB capacity | | Host Interface | PCIe Gen 2 x1 | | Graphics | 2D video graphic adapter, max resolution 1920×1200 @ 60 Hz | | Network | 2x MAC, supports RGMII, RMII, and NC‑SI | | Package | TFBGA‑400, 17 mm × 17 mm, 0.8 mm pitch | | Operating Temperature | −40 °C to 85 °C | | Power Consumption | Approximately 2.2 W (module‑level) |
The AST2500 is not a monolithic CPU; it is a purpose-built BMC. Let’s break down the major functional blocks as detailed in the datasheet.
The datasheet defines strict operating parameters that engineers must observe. The AST2500 operates on a , making it compatible with standard server power domains. The chip is rated for industrial‑grade operation from −40 °C to 85 °C , ensuring reliable performance in harsh data center environments. Aspeed Ast2500 Datasheet
The Datasheet boasts a with ECC (Error Correcting Code) support. Why does a management controller need ECC?
If you are looking at the initial AST2500 datasheet (released 2016), security is weak. Revision 1.03 of the datasheet introduced and PFR (Platform Firmware Resilience) support.
The ASPEED AST2500 is an designed primarily for server management, out-of-band (OOB) management, and KVM-over-IP functionality. Part of the AST2500/AST2520 series, it is developed by ASPEED Technology Inc. to act as a system-on-chip (SoC) that manages server health, provides video output, and allows administrators to control servers remotely, even if the primary host CPU is powered down or unresponsive. 2. Key Specifications from the AST2500 Datasheet In the world of modern computing, the demand
The is a legendary part in this ecosystem. While newer generations (AST2600) exist, the AST2500 remains the gold standard for legacy support, stability, and cost-effective remote management. For any hardware engineer or firmware developer, the Aspeed AST2500 Datasheet is the Rosetta Stone. However, finding a datasheet that isn't just a marketing fluff or a 600-page cryptic PDF is hard.
For developers, the and Linux kernel device tree bindings partially document the hardware register interface.
The first 4KB of boot ROM loads the second-stage bootloader (U-Boot) into DRAM. | Specification | Details | |---|---| | |
Hardware-implemented Keyboard Controller Style (KCS) and Block Transfer (BT) interfaces allow seamless Intelligent Platform Management Interface (IPMI) communication directly between the host OS and the BMC software stack. 7. Security Architecture
upgrades from previous generations by moving to DDR4 memory and a faster ARM core. ARM11 CPU running at 800MHz .
Data center security requires a hardened root of trust. The AST2500 incorporates silicon-level security features to secure remote operations.
One of the defining features outlined in the AST2500 datasheet is its specialized hardware engine for advanced Remote Keyboard, Video, Mouse, and Storage (KVMS) redirection. 2D Graphics Engine Integrated PCIe 2D Graphics Engine.