CR14 STMicroelectronics, CR14 Datasheet - Page 34

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CR14

Manufacturer Part Number
CR14
Description
Low Cost Iso14443 Type-b Contactless Coupler Chip With Anti-collision And Crc Management
Manufacturer
STMicroelectronics
Datasheet

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7 Tag access using the CR14 coupler
Figure 32. Anti-Collision ST short range memory Sequence Continued
34/46
I²C
RF ...
I²C
RF ...
I²C
RF ...
I²C
RF ...
I²C
RF ...
I²C
RF ...
I²C ...
RF
I²C ...
RF
S
A
R
T
T
Chip_ID
Chip_ID
Answer
Slot 9
Device
Select
Code
Slot 10
Slot 11
Slot 12
Slot 13
Slot 14
Slot 15
Chip_ID
Chip_ID
Answer
Slot 10
Register
Address
I/O
01h
Chip_ID Chip_ID
Chip_ID
Answer
Slot 11
R
E
S
A
R
T
T
Device
Select
Code
Chip_ID
Answer
Slot 12
Answer
Length
Frame
12h
SOF
SOF
SOF
SOF
SOF
SOF
Chip_ID
Chip_ID
Answer
Slot 13
Slot Bits
b 0 to b 7
Status
Status
Chip_ID
Chip_ID
Answer
Slot 14
96h
56h
66h
76h
86h
96h
b 8 to b 15
Slot Bits
Status Chip_ID
Status
Chip_ID
Chip_ID
Answer
Slot 15
CRC
CRC
CRC
CRC
CRC
CRC
Chip_ID
Answer
Slot 0
O
S
T
P
CRC
CRC
CRC
CRC
CRC
CRC
Chip_ID
Chip_ID
Answer
Slot 1
Chip_ID
Chip_ID
Answer
EOF
EOF
EOF
EOF
EOF
EOF
Slot 2
<-->
<-->
<-->
<-->
<-->
<-->
Chip_ID Chip_ID
t 0
t 0
t 0
t 0
t 0
t 0
Chip_ID
Answer
Slot 3
<-->
<-->
<-->
<-->
<-->
<-->
t 1
t 1
t 1
t 1
t 1
t 1
Chip_ID
Answer
SOF
SOF
SOF
SOF
SOF
SOF
Slot 4
Chip_ID
Chip_ID
Answer
Slot 5
Chip_ID
Chip_ID
Chip_ID
Chip_ID
Chip_ID
Chip_ID
Chip_ID
Chip_ID
Answer
Slot 6
CRC
CRC
CRC
CRC
CRC
CRC
Chip_ID Chip_ID
Chip_ID
Answer
Slot 7
CRC
CRC
CRC
CRC
CRC
CRC
Chip_ID
Answer
Slot 8
ai09264
EOF
EOF
EOF
EOF
EOF
EOF
CR14

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