ST25R3920 datasheet(65/152 Pages) STMICROELECTRONICS

65 / 152 page

DS13261 Rev 9

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ST25R3920

Application information

151

4.5

Registers

The ST25R3920 has two register spaces, each of them consists of up to 64 registers with

address ranging from 00h to 3Fh:

There are two types of registers implemented in the ST25R3920:

configuration registers: used to configure the device, can be written and read through

the SPI or I2C interfaces

display registers: read only (RO), contain information about the state of the device.

Registers are set to their default value at power-up and after sending the direct command

Set default. Bits set as RFU must be kept at their reset values unless otherwise specified.

Table 15. List of registers - Space A

Type

Address (hex)

IO configuration

IO configuration register 1

IO configuration register 2

Operation control and

mode definition

Operation control register

Mode definition register

Bit rate definition register

Protocol configuration

ISO14443A and NFC 106kb/s settings register

ISO14443B settings register 1

ISO14443B and FeliCa settings register

NFCIP-1 passive target definition register

Stream mode definition register

Auxiliary definition register

Receiver configuration

Receiver configuration register 1

Receiver configuration register 2

Receiver configuration register 3

Receiver configuration register 4

Timer definition

Mask receive timer register

No-response timer register 1

No-response timer register 2

Timer and EMV® control register

General purpose timer register 1

General purpose timer register 2

PPON2 field waiting register

ST25R3920 Datasheet(PDF) 65 Page - STMicroelectronics

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