CR14 STMicroelectronics, CR14 Datasheet - Page 33

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

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