AS3909 datasheet(50/77 Pages) AMSCO

номер детали	AS3909

подробное описание детали	13.56 MHz RFID Reader IC, ISO-14443 A/B

PDF	77 Pages

Scroll/Zoom	100%

производитель	AMSCO [ams AG]

домашняя страница	http://www.ams.com

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50 / 77 page

AS3909/AS3910 – 50

ams Datasheet, Confidential: 2013-Oct [3-02]

A p pl i c at io n I n f o r m at i o n

Regulator Registers

Figure 45:

Regulators Display Register

Note: At power up and after Set Default command, regulated voltage is set to maximum 3.4V.

Figure 46:

Regulated Voltage Definition Register

Note: Default setting is set at power up and after Set Default command.

Address # 15: Regulators Display

Type: R

Bit

Name

Function

Comments

reg_3

MSB

This register displays actual regulated voltage when

regulator is operating.

In Power-down mode, its content is forced to 00. See

Figure 47 for definition.

6reg_2

5reg_1

reg_0

LSB

Not used

Address # 16: Regulated Voltage Definition Register

Type: RW

Bit

Name

Def.

Function

Comments

7reg_s

→ regulated voltages are defined by

result of Adjust regulators command

→ regulated voltages are defined by

rege_x bits written in this register

Defines mode of regulator voltage

setting

6rege_3

MSB

External definition of regulated

voltage.

See Figure 47 for definition.

5rege _2

4rege _1

3rege _0

LSB

Not used

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