Intel MPRTM0020 Uživatelský manuál stáhnout pdf (Strana 31)

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MPRTM0020 Technical Product Specification – April 2006 31

RTM Management Architecture

5.4 Power Budget Management

The SBC IPMC has inherent knowledge of the non-intelligent RTM power requirements. The

IPMC will handle power negotiation commands from the Shelf Manager that are targeted for the

non-intelligent RTM FRU ID. By doing this, the Shelf Manager should see the non-intelligent

RTM as a separate controller negotiating for a power budget.

5.5 LED Management

The SBC IPMC has direct control over the LEDs on the non-intelligent RTM. Control of these

LEDs is done through the IPMC system attention manager in the same way as other IPMC-

controlled LEDs. Special fault classes are added to system attention manager tables to handle the

failure and status state of the non-intelligent RTM. The non-intelligent RTM sensors and M-State

machine are the contributors to the failure and status state. When the non-intelligent RTM is

present, its failures will contribute to the overall failure state of the IPMC. Thus, the non-intelligent

RTM LEDs will match the SBC LEDs.

5.6 SDR Proxy

The SDR records for the non-intelligent RTM are stored in a proprietary format in the internal use

area of the non-intelligent RTM FRU storage device. When the non-intelligent RTM reaches M1

state the non-intelligent RTM SDR records are read out of the FRU device and stored in the IPMC.

The non-intelligent RTM SDR records are then merged with the IPMC SDR records and made

available through the Device SDR IPMI commands.

5.7 RTM Sensor Proxy

The non-intelligent RTM sensors are included in the sensor compliment programmed in the SBC

IPMC. The only difference is that the non-intelligent RTM sensors are turned on and off with

respect to the non-intelligent RTM M-State. When the non-intelligent RTM is in M4 state the

sensors are turned on and scanned by the IPMC. In any other M-state the sensors are not scanned

and will return a “sensor not found” completion code to sensor commands. When the non-

intelligent RTM sensors are turned on the IPMC handles event generation and sensor access

commands for the non-intelligent RTM sensors just as it does for any other IPMC sensor.

Below is a list of the current non-intelligent RTM sensors:

• RTM +1.8V

• RTM +3.3V

• RTM +3.3V Standby

• RTM +5.0V

• RTM +5.0V Standby

• RTM +12V

• RTM Temp1

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Intel MPRTM0020 Uživatelský manuál Strana 31