ThingMagic M5e-Compact - Manual (Page 142)

Application Tag Commands
142 Command Set
Impinj Monza 4QT Command Fields
Field Value Notes
Length [1 byte]
OpCode 0x2D
Timeout [2 bytes] Ignored when used as an embedded command for Tag
Inventory With Embedded Operations
Chip Type 0x08 0x08 - Impinj Monza 4QT
Tag Singulation Fields
| Select Option
[1 byte] bit 6 (x1xx xxxx | 0x40) must be set, indicating a 2-byte sub
command follows this byte, and before the remaining
Tag
Singulation Fields
Sub Command 0x0000 • 0x0000 - QT Read/Write
Access Password [4 bytes] • Must be non-zero for QT Read/Write
Tag Singulation Fields
| Select [Address,
Data Length, Data]
[n bytes] The remaining fields from the Tag Singulation Fields
Note: Optional depending on the value of Select Option.
Control Byte 0xX0 Only the 4 most significant bits are used, as follows:
Bit 7 (MSB) - Read/Write bit
• 0 = read the QT control bits in cache
• 1 = write the QT control bits
Bit 6 - Persistence bit
• 0 = write the QT Control to volatile memory
• 1 = write the QT Control to nonvolatile memory
Bits 5 and 4 - RFU, currently ignored by tag
Payload [2 bytes] Controls the QT functionality. These bits are ignored when
the Read/Write bit =0.
Bit 15 (MSB) - QT_SR
• 0 = Tag does not reduce range
• 1 = Tag reduces range if in or about to be in OPEN or
SECURED state.
Bit 14 - QT_MEM
• 0 = Tag uses Private Memory Map
• 1 = Tag uses Public Memory Map
Bits 13:0 - RFU