RM310 NXP Semiconductors, RM310 Datasheet - Page 19

• Manufacturer Part Number: RM310
• Description: Ht Rm 310 Hitag Tm Mini Reader Module
• Manufacturer: NXP Semiconductors

HT RM310
3.3.3.
This command selects a HITAG 1 transponder with the serial number given in the protocol. With
this selection the transponder is prepared for read and write commands in HITAG 1 mode.
The command provides the OTP of the selected transponder. Using the “Advanced Protocol
Mode“ of HITAG 1 transponders by using the “GetSnr_HT1_Adv“ command the data is followed
by an 8 Bit CRC.
Protocol:
Host - Reader module
Reader module - Host
3.3.4.
This command selects a HITAG 1 transponder with the serial number read by the last error free
command “GetSnr_HT1“. There must be no reset of the transponder (caused by the commands
“HF-OFF“, “Powerdown“ or by moving the transponder out of the antenna field) between the
commands “GetSnr_HT1“ and “SelectLastSnr_HT1“
With this selection the transponder is prepared for read and write commands in HITAG 1 mode.
The command provides the OTP of the selected transponder. In the “Advanced Protocol Mode“ of
HITAG 1 transponders (by using the “GetSnr_HT1_Adv“-command) the data is followed by an 8
Bit CRC.
Protocol:
Host - Reader module
Reader module - Host
Htrm310.doc/HS
SelectSnr_HT1
SelectLastSnr_HT1
Page 19 of 41
Rev. 2.3
status: 0 no error
status: 0 no error
0x12
Snr [0]
Snr [3]
status
OTP [0] LSB
OTP [3] MSB
0x13
status
OTP [0] LSB
OTP [3] MSB
1 INTERFACE error
3 NOTAG error
1 INTERFACE error
3 NOTAG error
02-10-1998