82801FB Datasheet, PDF (114/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Functional Description
5.4.1
The ASF controller provides three local configuration protocols via the host SMBus. The first one
is the SMBus ARP interface that is used to identify the SMBus device and allow dynamic SMBus
address assignment. The second protocol is the ASF controller command set that allows software
to manage an ASF controller compliant interface for retrieving info, sending alerts, and controlling
timers.
ICH6 provides an input and an output EEPROM interface. The EEPROM contains the LAN
controller configuration and the ASF controller configuration/packet information.
ASF Management Solution Features/Capabilities
• Alerting
— Transmit SOS packets from S0–S5 states
— System Health Heartbeats
— SOS Hardware Events
- System Boot Failure (Watchdog Expires on boot)
- LAN Link Loss
- Entity Presence (on ASF power-up)
- SMBus Hung
- Maximum of eight Legacy Sensors
- Maximum of 128 ASF Sensor events
— Watchdog Timer for operating system lockup/System Hang/Failure to Boot
— General Push support for BIOS (POST messages)
• Remote Control
— Presence Ping Response
— Configurable Boot Options
— Capabilities Reporting
— Auto-ARP Support
— System Remote Control
- Power-Down
- Power-Up
- Power Cycle
- System Reset
— State-Based Security – Conditional Action on WatchDog Expire
• ASF Compliance
— Compliant with the Alert Standard Format (ASF) Specification, Version 1.03
- PET Compliant Packets
- RMCP
- Legacy Sensor Polling
- ASF Sensor Polling
- Remote Control Sensor Support
• Advanced Features / Miscellaneous
— SMBus 2.0 compliant
— Optional reset extension logic (for use with a power-on reset)
114
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet