RFID Interface
LRP2000 Long Range Passice Reader/Writer
65
Example:
Reads 2 bytes of data from the tag starting at address 0001H. A
timeout of 2 seconds (07D0H = 2000 x 1 msec increments) is set for
the completion of the SN Block Read All. The Family ID byte is set to
zero so all tags will be read. Two tags respond with read data.
Command from host
Response from controller
MSB LSB Remarks
MSB LSB
Remarks
AAH 82H Perform
Command 82
AAH 82H
Command Echo/Tag 1
00H
00H Tag Family 00/
Reserved
00H
10H
SN byte 1/Tag 1
00H
01H Start Address
00H 43H
SN byte 2/Tag 1
00H
02H Read Length
00H
6CH SN byte 3/Tag 1
07H
D0H Timeout
00H 73H
SN byte 4/Tag 1
FFH
FFH Message
Terminato
00H
92H
SN byte 5/Tag 1
00H C0H
SN byte 6/Tag 1
00H D6H
SN byte 7/Tag 1
00H 54H
SN byte 8/Tag 1
00H
30H
Data byte 1/Tag 1
00H
31H
Data byte 2/Tag 1
FFH FFH
Terminator/ Tag 1
AAH 82H
Command Echo/Tag 2
00H
08H
SN byte 1/Tag 2
00H
0AH SN byte 2/Tag 2
00H 81H
SN byte 3/Tag 2
00H 18H
SN byte 4/Tag 2
00H 23H
SN byte 5/Tag 2
00H
CCH SN byte 6/Tag 2
00H
D0H SN byte 7/Tag 2
00H EFH SN byte 8/Tag 2
00H 40H
Data byte 1/Tag 2
00H 41H
Data byte 2/Tag 2
FFH FFH Terminator/ Tag 2
AAH FFH
Command end
02H 08H
Ntags/Status
FFH FFH
Message Terminator
