ST25R3916 datasheet(120/157 Pages) STMICROELECTRONICS

Part #	ST25R3916

Description	High performance NFC universal device and EMVCo™ reader

PDF	157 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Application information

ST25R3916/7

120/157

DS12484 Rev 4

4.5.56

Regulator voltage control register

Address: 2Ch

Type: RW

Table 90. Regulator voltage control register

Bit

Name

Default

Function

Comments

reg_s

0: Regulated voltages are defined by

result of Adjust Regulators command

1: Regulated voltages are defined by

rege_x bits written in this register

Defines mode of regulator voltage setting.

rege_3

External definition of regulated voltage

(see Table 92).

In 5 V mode VDD_D and VDD_A

regulators are set to 3.4 V

In 5 V mode VDD_D and VDD_A regulators

are set to 3.4 V.

In 3.3 V mode VDD_D and VDD_A regulators

are set to the same value as VDD_RF.

rege_2

rege_1

rege_0

mpsv2

000: VDD

001: VDD_A

010: VDD_D

011: VDD_RF

100: VDD_AM

101: RFU

110: RFU

111: RFU

Defines source of direct command Measure

power supply.

mpsv1

mpsv0

ST25R3916 Datasheet(PDF) 120 Page - STMicroelectronics

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