4.1.1 Initiator

Once the Initial RF Collision avoidance is completed and no RF field has been detected (see Figure 7), the following registers must be modified each time before a DEP_REQ is sent to the active target (see Figure 8). For more information, see Section 2.

1. Delay time specified in the technology specification (56 µs to 188 µs).
2. ISO Control register (0x01) → 0x08 (ISO1443A at 106 kbps, receive with CRC).
3. Delay 1 ms.
4. Send packet:
   1. Reset FIFO (0x0F) direct command.
   2. Transmission with (0x11) or without (0x10) CRC direct command.
   3. TX Length Byte 1 (0x1D) and TX Length Byte 2 (0x1E) registers.
   4. Write the command to the FIFO.