User's Manual

27
May ’00 Chapter 4. Transponder Protocols
4.2 Transponder Responses
This section shows the response telegrams of the current TIRIS transponder types.
4.2.1 Read Only Transponder
Figure 14: RO Read Data Format
4.2.2 Read/Write Transponder
Figure 15: R/W Read Data Format
4.2.3 MPT/SAMPT
Figure 16: MPT/SAMPT Read Data Format
The Read Address consists of a 2-bit status field and a 6-bit page field. The status
field provides information about the function the multipage transponder has executed
and the page field shows which page was affected.
READ ADDRESS
MSB LSB
P P P P P P C C
||
PAGE COMMAND
MSB LSB MSB LSB
Page 1 000001 00 Read unlocked page
Page 2 000010 01 Programming done
. . . 10 Read locked page
Page 16 010000 11 Reserved *
Page 17 010001
000000 00 Read unlocked page, locking not correctly executed
000000 01 Programming done, but possibly not reliable
000000 10 Read locked page, but locking possibly not reliable
START
8
16 8
STOP
64 16
DISCHARGE
LSB
PRE BITS
END BITS
IDENTIFICATION DATA DATA BCC
MSB
16 bits
16
112 bits
READ DATA
START
8
16 8
READ DATA
STOP
64 16
DISCHARGE
15
LSB
PRE BITS END BITS
IDENTIFICATION DATA DATA BCC
MSB
112 bits 16 bits
IDENT. DATA
START
8 16 8 16
READ DATA
ADDR.
READ
128 bit
64
16
LSB
IDENTIFICATION DATA
MSB
FBCC
DBCC
PRE BITS
DISCHARG
E