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CR14 Datasheet(PDF) 33 Page - STMicroelectronics

Part # CR14
Description  Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision and CRC Management
PDF  46 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

CR14 Datasheet(HTML) 33 Page - STMicroelectronics

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CR14
7 Tag access using the CR14 coupler
33/46
Figure 31. Anti-Collision ST short range memory Sequence (1)
03h
I²C
S
T
A
R
T
Device
Select
Code
Slot
Marker
Register
Address
S
T
O
P
SOF
Slot 0
06h
04h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
CR14
SOF
PCALL 16 TAG
Command
CRC
CRC
CR14
EOF
TAG
SOF
TAG
Chip_ID
TAG
CRC
TAG
CRC
TAG
EOF
RF
I²C
SOF
Slot 1
16h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 2
26h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 3
36h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 4
46h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 5
56h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 6
66h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 7
76h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 8
86h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
I²C
SOF
Slot 9
96h
CRC
CRC
EOF
SOF
t0
<-->
t1
<-->
Chip_ID
CRC
CRC
EOF
RF...
CR14
SOF
Slot Marker
Command
CRC
CRC
CR14
EOF
TAG
SOF
TAG
Chip_ID
TAG
CRC
TAG
CRC
TAG
EOF
ai12054



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