Read Function; Programming Data Format Of The 64-Bit Read/Write Transponder; Read Ro, R/W - Texas Instruments 2000 Series Reference Manual

Transponder Commands
4.1 Transponder Commands
This section describes the protocols that need to be sent by the PC to the transponder via the
Micro-reader in order to execute the required function.

4.1.1 Read RO, R/W

RF TRANSMITTER
4.1.2 Program R/W
OFF
RF TRANSMITTER
POWER BURST I
ON
Figure 4-2. Programming Data Format of the 64-bit Read/Write Transponder
4.1.3 Addressing MPTs/SAMPTs
Since MPT/SAMPTs allow the execution of the different commands applicable to multiple pages the 'Write
Address' needs to be sent within the protocol in order to determine the function to be executed with a
specific MPT/SAMPT page.
28 Transponder Protocols
OFF
ON
Figure 4-1. Read Function
8 8
WRITE WRITE
KEYWORD PASSWORD
50 ms 16 ms 16 ms
LSB
Write Keyword :
Write Password :
Write Frame
WRITE ADDRESS
MSB
P P P P P P
|
PAGE COMMAND
MSB LSB MSB LSB
Page 1 000001
Page 2 000010
. . .
Page 16 010000
Page 17 010001
POWER BURST
50 ms
112 bit
80
WRITE
WRITE DATA
160 ms
309 ms
BB
hex
EB
hex
: 0300
hex
LSB
C C
|
00 General read page
01 Program page
10 Lock page
11 Selective read
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READ
20 ms
128 bit
16
PB II READ
FRAME
32 ms 15 ms 20 ms
MSB
SCBU027 – May 2000
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