AS3911 datasheet(86/159 Pages) AMSCO

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[v2-11] 2016-Jun-13

AS3911 − Application Information

Note(s):

1. Default setting is set at power-up and after Set Default command.

General Purpose and No-Response Timer Control

Figure 67:

General Purpose and No-Response Timer Control Register

Note(s):

1. Default setting is set at power-up and after Set Default command.

Figure 68:

Timer Trigger Source

Address 11h: General Purpose and No-Response Timer

Control Register

Type: RW

Bit

Name

Default

Function

Comments

7gptc2

Defines the timer trigger source.

Refer to Timer Trigger Source.

6gptc1

5gptc0

1nrt_emv

1: EMV mode of No-response timer

0nrt_step

0: 64/fc

1: 4096/fc

Selects the No-response timer step.

Timer Trigger Source

gptc2

gptc1

gptc0

Trigger Source

No trigger source, start only with direct command Start General

Purpose Timer.

End of Rx (after EOF)

Start of Rx

End of Tx in NFC mode, when General Purpose Timer expires the field is

switched off

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