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FS2343 Probe Description
The FS2343 FBDIMM Interposer Probe is based on the “Logic Analyzer Interface (LAI)
Mode” of the Advanced Memory Buffer chip used on Fully Buffered DIMMs. This mode
allows decoding of the Primary Southbound (from memory controller to FBDIMMs)
Commands and Data as well as Secondary Northbound Commands and Data from the
interposed FBDIMM located in the card edge connector on the top of the FS2343
Interposer Probe.
The probe can provide a single Southbound frame of 120 bits (10 lanes of 12 bits each)
as well as a Northbound frame of 168 bits (14 lanes of 12 bits each) to the logic
analyzer. On each line of the trace list a complete Northbound and Southbound frame is
captured to simplify triggering. State Analysis of these frames is provided through the
use of a Protocol Decoder.
The probe requires control through a SMBus provided by the logic analyzer. This control
is provided with the probe that runs on the 16900 workspace and is linked to the probe
thru the SMBus ports in the logic analyzer cards when used with the 1690x series
Agilent Logic Analyzer frames. 16753/4/5/6 as well as 16950 cards are supported. This
LAI control Probe Add-In allows the user complete control over the LAI mode functions
of the AMB used in the FS2343 to control Set-up, Triggering, Store Qualification, and
AMB Register parameters.