Jtag Boundary-Scan - Dell PowerEdge T310 Technical Manual

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Command, Send Byte, Receive Byte, Write Byte/Word, Read Byte/Word, Process Call, Block

Read/Write, and Host Notify.

The chipset's SMBus also implements hardware-based Packet Error Checking for data robustness and

the Address Resolution Protocol (ARP) to dynamically provide address to all SMBus devices.

8.15 JTAG Boundary-Scan

The Intel 3420 chipset adds the industry standard JTAG interface and enables Boundary-Scan in place

of the XOR chains used in previous generations of the chipset. Boundary-Scan can be used to ensure

device connectivity during the board manufacturing process. The JTAG interface allows system

manufacturers to improve efficiency by using industry available tools to test the chipset on an

assembled board. Since JTAG is a serial interface, it eliminates the need to create probe points for

every pin in an XOR chain. This eases pin breakout and trace routing and simplifies the interface

between the system and a bed-of-nails tester.

PowerEdge T310 Technical Guide

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