Dell PowerEdge R310 Technical Manual

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Dell PowerEdge R310 Technical Manual Manual pdf 44 page image

DellDell PowerEdge R310 Technical Guide 439.17 System Management Bus (SMBus 2.0)The Intel 3420 contains an SMBus Host interface that allows the processor to communicate with SMBus slaves.This interface is compatible with most I2C devices. Special I2C commands are implemented.The Intel 3420’s SMBus host controller provides a mechanism for the processor to initiate communicationswith SMBus peripherals (slaves). Also, the Intel 3420 supports slave functionality, including the Host Notifyprotocol. Hence, the host controller supports eight command protocols of the SMBus interface (see SystemManagement Bus(SMBus) Specification, Version 2.0): Quick Command, Send Byte, Receive Byte, Write Byte/Word, ReadByte/Word, Process Call, Block Read/Write, and Host Notify.Intel 3420’s SMBus also implements hardware-based Packet Error Checking for data robustness and theAddress Resolution Protocol (ARP) to dynamically provide address to all SMBus devices.9.18 Intel Anti-Theft TechnologyThe Intel 3420 introduces a new hardware-based security technology which encrypts data stored on anySATA compliant HDD in AHCI Mode. This feature gives the end-user the ability to restrict access to HDD databy unknown parties. Intel ® Anti-Theft Technology can be used alone or can be combined with softwareencryption applications to add protection against data theft.Intel® Anti-Theft Technology functionality requires a correctly configured system, including an appropriateprocessor, Intel Management Engine firmware, and system BIOS support.9.19 Intel Virtualization Technology for Directed I/OThe Intel 3420 provides hardware support for implementation of Intel ® Virtualization Technology withDirected I/O (Intel ® VT-d). Intel VT-d Technology consists of technology components that support thevirtualization of platforms based on Intel ® Architecture Processors. Intel VT-d Technology enables multipleoperating systems and applications to run in independent partitions. A partition behaves like a virtualmachine (VM) and provides isolation and protection across partitions. Each partition is allocated its ownsubset of host physical memory.9.20 JTAG Boundary-ScanIntel 3420 adds the industry standard JTAG interface and enables Boundary-Scan in place of the XOR chainsused in previous generations of the Intel 3420. Boundary-Scan can be used to ensure device connectivityduring the board manufacturing process. The JTAG interface allows system manufacturers to improveefficiency by using industry available tools to test the Intel 3420 on an assembled board. Since JTAG is aserial interface, it eliminates the need to create probe points for every pin in an XOR chain. This eases pinbreakout and trace routing and simplifies the interface between the system and a bed-of-nails tester.