AS3911 datasheet(71/159 Pages) AMSCO

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ams Datasheet

Page 71

[v2-11] 2016-Jun-13

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AS3911 − Application Information

Figure 48:

Target Operation Modes

Note(s):

1. In case an operation mode which is not supported is selected, the Tx/Rx operation is disabled.

Bit Rate Definition Register

Figure 49:

Bit Rate Definition Register

Note(s):

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

2. Automatically loaded by direct command Go to Normal NFC Mode.

Target Operation Modes

om3

om2

om1

om0

Comment

NFCIP-1 active communication, bit rate detection mode

NFCIP-1 active communication, normal mode

Other combinations

Not used

Address 04h: Bit Rate Definition Register

Type: RW

Bit

Name

Default

Function

Comments

7tx_rate3

Refer to Bit Rate Coding

Selects bit rate for Tx

6tx_rate2

5tx_rate1

4tx_rate0

3rx_rate3

Selects bit rate for Rx in case

selected protocol allows

different bit rates for Rx and Tx

2rx_rate2

1rx_rate1

0rx_rate0

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