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The PCA9617A is a CMOS integrated circuit that provides level shifting between low voltage (0.8 V to 5.5 V) and higher voltage (2.2 V to 5.5 V) Fast-mode Plus (Fm+) I 2 C-bus or SMBus applications. While retaining all the operating modes and features of the I 2 C-bus system during the level shifts, it also permits extension of the I 2 C-bus by providing bidirectional buffering for both the data (SDA) and the clock (SCL) lines, thus enabling two buses of 540 pF at 1 MHz or up to 4000 pF at lower speeds. Using the PCA9617A enables the system designer to isolate two halves of a bus for both voltage and capacitance. The SDA and SCL pins are overvoltage tolerant and are high-impedance when the PCA9617A is unpowered.

This section presents the commands that are common to all Intelligent Platform Management (IPM) devices

This document is prepared to assist BMC vendors and external management software vendors in supporting Intel ® Intelligent Power Node Manager 3.0. It documents the IPMI commands that can be sent to the Intel ® Management Engine (Intel ® ME) present in the Intel ® C610 Chipset Family. This document describes also IPMI sensors implemented in order to ensure the correct and reliable operation of the platform.

A Management Controller (MC) or Baseboard Management Controller (BMC) usually requires Ethernet connectivity for remote management. Initially, MC’s had a dedicated Ethernet port to achieve this connectivity. Later, Ethernet manufacturers started using proprietary sideband interfaces to provide a mechanism by which the MC could share an Ethernet port with the Operating System. This interface was generally based upon the I2C/SMBus interface, but had a proprietary protocol. The DMTF set out to create an industry standard sideband interface that would operate at a much greater speed than SMBus and alleviate some of the burden on BMC engineers who, for years, had been writing different Ethernet code based on which manufacturers’ Ethernet device was used as the LOM (LAN on Motherboard) for the server board.

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