User Manual

ThingMagic Nano User Guide 36
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Gen2 Protocol Configuration Options
ThingMagic Nano supports limited ISO-18000-6C profiles, with only the Backscatter Link Frequency (BLF)
and “M” value as configurable options. The protocol options are set in the MercuryAPI Reader
Configuration Parameters (/reader/gen2/*). The following table shows the supported combinations:
NOTE: When continuously reading, it is important that the data transfer rate from the host to the module
is faster than the rate at which tag information is being collected by the module. This is assured
if the reader/baudRate setting is greater than the BLF divided by the “M” value. If not, then the
reader could be reading data faster than the host can off-load it, and the reader’s buffer might fill
up.
Unsupported Gen2 Functionality
ThingMagic Nano module firmware can perform some Gen2 functions as a standalone command but
cannot do so as part of an embedded TagOps command. The following is the list of supported standard
Gen2 functions:
Most of the multi-antenna functions are supported because the Nano can support a 1:16 multiplexer,
creating 4 logical ports from its one physical port.
Gen2 Protocol Supported Combinations
Backscatter
Link Frequency
(kHz) Encoding
Tari
(usec)
Modulation
Scheme Notes
250 Miller (M=8) 25 PR-ASK Up to 85 tags per second read rate
250 Miller (M=4) 25 PR-ASK Default; Up to 170 tags per second
read rate
250 Miller (M=2) 25 PR-ASK Up to 200 tags per second read rate
Standard Supported Gen2 Functions
Function As Embedded TagOPs As Stand-alone TagOPs
Gen2 Read Data Yes Yes
Gen2 Write Tag No Yes
Gen2 Write Data No Yes
Gen2 Lock Tag No Yes
Gen2 Kill Tag No Yes
Gen2 Block Write No Yes
Gen2 Block Erase No Yes
Gen2 Block Permalock No Yes
Secure Read Data No No