
Application Tag Commands
Command Set 137
Calibrate
The NXP command Calibrate causes the tag to return a random data pattern that is
useful in some frequency spectrum measurements.
Calibrate can only be sent when the tag is in the Secured state, when the access
password is non-zero. This command uses only the common fields and is invoked with
the following command.
The response to the Calibrate command contains 64 bytes of Calibrate Data, only if
Status=0x0000. The format of the response is:
Calibrate embedded in a Read Tag Multiple take the following form:
Note
If the tag is a G2XL without User Memory the Calibrate Data response field
will contain 64 bytes of ‘00’.
NXP G2i* Silicon (Chip Type=0x07)
Tags using the NXP G2i Silicon (SL3S1203_1213), please contact NXP for further details,
support all the commands defined for N
XP G2X* Silicon (Chip Type=0x02), with the
caveats as noted in the command descriptions. In addition the following custom
commands is G2i* only.
FF 10 2D 03 E8 02 44 00 05 00 00 00 78 08 34 11 22 33 44 ?? ??
SOH Length OpCode Timeout (ms) Chip
Type
Option Sub
Cmd
Select Data Address Select
Length
Selct
Data
Access Password CRC
FF 09 2D 00 00 02 44 00 05 [64 bytes] ?? ??
SOH Length OpCode Status Chip
Type
Option Sub
Cmd
[Calibrate
Data]
CRC
FF 19 22 04 00 04 03 E8
11 22 33 44 00 00 00 78 08 34
SOH Length OpCode Options
(EPC Mem)
Search
Flags
Timeout Access Password Select Data Address
(bits)
Select
Data
Length
(bits)
Select
Data
01 0A 2D
00 00
02 40
00 05
11 22 33 44
?? ??
Embd
Cmd
Count
Embd
Cmd
Length
Embd
Cmd
OpCode
Embd Cmd
Timeout
(Not Used)
Chip
Type
Option Sub Cmd Access Password) CRC
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