CRX14_10 Datasheet, PDF (15/47 Pages) STMicroelectronics – ISO14443 type-B contactless coupler chip with anti-collision, CRC management and anti-clone function

CRX14
CRX14 registers
Table 5. Slot marker register description
b₇
b₆
b₅
b₄
b₃
b₂
b₁
b₀
Byte 0
Number of stored Bytes: fixed to 18
Byte 1
Status Slot Status Slot Status Slot Status Slot Status Slot Status Slot Status Slot Status Slot
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 2
Status Slot Status Slot Status Slot Status Slot Status Slot Status Slot Status Slot Status Slot
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Byte 3
Slot_Register 0 = Chip_ID value detected in Slot 0
Byte 4
Slot_Register 1 = Chip_ID value detected in Slot 1
Byte 5
Slot_Register 2 = Chip_ID value detected in Slot 2
Byte 6
Slot_Register 3 = Chip_ID value detected in Slot 3
Byte n
.....
Byte 17
Slot_Register 14 = Chip_ID value detected in Slot 14
Byte 18
Slot_Register 15 = Chip_ID value detected in Slot 15
Status bit value description:
1: No error detected. The Chip_ID stored in the Slot register is valid.
0: Error detected
– Slot register = 00h: No answer frame detected from ST short range memory
– Slot register = FFh: Answer Frame detected with CRC error. Collision may have occurred
Doc ID 8880 Rev 4
15/47