Non-volatile memory Configuration Contactless CCID Bitrates
September 20, 2024 at 2:48 AMNFC / RFID HF bit-rates in PC/SC mode
Address : 0232 (bank 2, register 32)
Size : 2 bytes
Type : array (fixed length)
Default : 0000
Remark
-
Forcing the reader to use low-speed protocol increase the operating distance, makes the communication with the card more reliable, and decreases the power consumption.
-
This register is not used in Smart Reader mode (only lowest-speed protocol are used then).
Content
Byte 0 : Bitrates for NFC-A (ISO/IEC 14443 type A)
| Bit | Role | Values |
|---|---|---|
| 7 | RFU | |
| 6 | PICC to PCD at 848kbps | 0 : Disabled1 : Enabled |
| 5 | PICC to PCD at 242kbps | 0 : Disabled1 : Enabled |
| 4 | PICC to PCD at 212kbps | 0 : Disabled1 : Enabled |
| 3 | RFU | |
| 2 | PCD to PICC at 848kbps | 0 : Disabled1 : Enabled |
| 1 | PCD to PICC at 242kbps | 0 : Disabled1 : Enabled |
| 0 | PCD to PICC at 212kbps | 0 : Disabled1 : Enabled |
Byte 1 : Bitrates for NFC-B (ISO/IEC 14443 type B)
| Bit | Role | Values |
|---|---|---|
| 7 | RFU | |
| 6 | PICC to PCD at 848kbps | 0 : Disabled1 : Enabled |
| 5 | PICC to PCD at 242kbps | 0 : Disabled1 : Enabled |
| 4 | PICC to PCD at 212kbps | 0 : Disabled1 : Enabled |
| 3 | RFU | |
| 2 | PCD to PICC at 848kbps | 0 : Disabled1 : Enabled |
| 1 | PCD to PICC at 242kbps | 0 : Disabled1 : Enabled |
| 0 | PCD to PICC at 212kbps | 0 : Disabled1 : Enabled |