Tag settings
UM2268
62/68
UM2268 Rev 6
Example
By default, the “Generic Command” is pre-configured to Gen2 Read command: reading the
first word in TID memory from address 0.
As a reminder, the EPC global Gen2 Read command is specified as follows:
Command:
Answer:
The following parameters should be set depending on Direct command scheme:
CMD_TRANSMCRC (0x90):
•
Append RN16: yes
•
Tx Bit Length: 26 bits (as RN16 bits are automatically handled by MW, CRC bits are
handled by chip)
•
Rx Bit Length: 33 bits (as read 2 bytes and waits for Header and RN16 bits, CRC bits
are handled by chip)
•
Command Data: 0xC2 80 00 40
CMD_TRANSMCRCEHEAD (0x91):
•
Append RN16: yes
•
Tx Bit Length: 26 bits (as RN16 bits are automatically handled by MW, CRC bits are
handled by chip)
•
Rx Bit Length: 32 bits (as read 2 bytes and waits only for RN16 bits, CRC and Header
bits are handled by chip)
•
Command Data: 0xC2 80 00 40
CMD_TRANSM (0x92):
Not applicable as RN16 and CRC cannot be anticipated at this stage
Cmd Read
(8bit)
MemBank
(2bit)
WordPtr
(EBV)
WordCount
(8bit)
RN
(6bit)
CRC
(16bit)
Header
(1bit)
Memory Words
RN
(16bit)
CRC
(16bit)
