ST25R200 datasheet(26/88 Pages) STMICROELECTRONICS

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5.14

Registers

The 7-bit register addresses below are defined in hexadecimal notation. The possible addresses range from 00h

to 3Fh.

There are two types of registers available in the ST25R200:

•

Configuration registers

•

Display registers

Configuration registers can be read and written (RW) through the SPI and hold the device configuration.

Display registers are read only (R) and contain information about the device’s internal state.

Additionally, registers are grouped in two different power domains:

•

Power down (PD)

•

Ready (RD)

When the device is not in ready mode, only registers belonging to the PD domain can be accessed. In ready

mode all registers can be accessed.

Registers are set to their default state at power-up, reset and after execution of the direct command set default.

The bits set as RFU must be kept at their default values unless otherwise specified.

Table 5. Registers overview

Type

Address(hex)

Power domain

Operation

Configuration

General

Regulator

Driver

Tx mod 1

Tx mod 2

Rx path analog 1

Rx path analog 2

Rx path digital

Correlator 1

Correlator 2

Correlator 3

Correlator 4

Correlator 5

Correlator 6

Display

Display 1

Display 2

Status

Protocol

Protocol Tx 1

Protocol Tx 2

Protocol Tx 3

Protocol Rx 1

Protocol Rx 2

Protocol Rx 3

EMD

EMD 1

EMD 2

ST25R200

Application information

DS13658 - Rev 2

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