CRX14_05 Datasheet, PDF (28/40 Pages) STMicroelectronics – Low Cost ISO14443 type-B Contactless Coupler Chip with Anti-Collision, CRC Management and Anti-Clone Function

CRX14
Figure 32. Anti-Collision ST short range memory Sequence (1)
S
T
A
R
T
Device
Select
Code
Slot
Marker
Register
Address
S
T
O
P
CRX14
SOF
I²C
03h
PCALL 16 TAG
Command
CRC
CRC CRX14
EOF
TAG
TAG TAG TAG TAG
SOF Chip_ID CRC CRC EOF
RF
Slot 0
I²C
RF...
Slot 1
I²C
RF...
Slot 2
I²C
RF...
Slot 3
I²C
RF...
Slot 4
I²C
RF...
Slot 5
I²C
RF...
Slot 6
I²C
RF...
Slot 7
I²C
RF...
Slot 8
I²C
RF...
Slot 9
SOF
06h
04h CRC
CRX14 Slot Marker CRC
SOF Command
CRC
CRC
EOF t0 t1 SOF
<--> <-->
CRX14
TAG
EOF
SOF
Chip_ID CRC CRC
TAG TAG
Chip_ID CRC
TAG
CRC
EOF
TAG
EOF
SOF
16h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
26h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
36h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
46h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
56h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
66h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
76h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
86h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
SOF
96h
CRC CRC EOF t0 t1 SOF
Chip_ID CRC CRC EOF
<--> <-->
ai09263
28/40