User Manual Part 1

RFID Interface

LRP2000 Long Range Passice Reader/Writer

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