Aspeed Ast2500 Datasheet __full__ Instant

Which do you plan to deploy (OpenBMC or AMI)?

Strengths

The GitHub resource includes ast2500V17.pdf as of May 2025, representing the latest publicly indexed version.

| Parameter | Details | |-----------|---------| | | ARM Cortex-A7 @ up to 800 MHz | | L1/L2 Cache | 32KB I/D, 128KB L2 | | Video Memory | Embedded DDR4 16Mb (or external DDR3/4 up to 1GB) | | Package | 441-pin FCBGA (21x21mm) | | Operating Temp | 0°C to 70°C (commercial) / -40°C to 85°C (industrial optional) | | Process | 40nm | Aspeed Ast2500 Datasheet

| ID | Description | Workaround | |----------|--------------------------------------------------|-------------------------------------------| | AST2500-01 | PCIe link may fail at Gen2 speed with some switches | Force Gen1 speed via strap | | AST2500-05 | I2C bus hang when clock stretching > 1 ms | Use software timeout and bus reset | | AST2500-09 | eMMC HS200 mode unstable at 200 MHz | Limit to 150 MHz or use DDR50 mode | | AST2500-12 | ADC reading offset at low temperature (-40°C) | Factory calibration or software correction|

Features dual 10/100/1000 Mbps Gigabit Ethernet MAC controllers.

The differences between the architectures. Share public link Which do you plan to deploy (OpenBMC or AMI)

From the datasheet’s timing diagrams, engineers learn that the VGA input connects to the host server’s GPU output. The AVE captures this analog/digital signal, compresses it, and sends it over the network to a remote client like a web browser or IPMIView.

One of the AST2500's most distinctive features is its , which eliminates the need for a separate VGA add‑in card—a meaningful cost saving for server motherboard designs. The graphics subsystem provides:

While ASPEED often requires a Non-Disclosure Agreement (NDA) for full unrestricted access, several community and distributor resources provide the documentation. The differences between the architectures

Precise pulse-width modulation for cooling fan speed control Up to 16 channels Reading fan RPM speeds to detect cooling failures GPIOs Over 100 customizable pins LED indicators, chassis intrusion, and power sequencing Security and Firmware Integrity

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.

For hardware engineers, the datasheet remains essential reading—providing pinout diagrams, electrical specifications, power sequencing requirements, and timing diagrams necessary for successful integration. For firmware developers, the ARM1176JZ‑S core documentation supplements the datasheet to enable efficient bare‑metal and Linux‑based BMC development. For system architects, the AST2500 represents a mature, well‑understood platform with extensive ecosystem support.