ST25R3916 datasheet(103/157 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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103 / 157 page

DS12484 Rev 4

103/157

ST25R3916/7

Application information

156

4.5.40

Collision display register

Address: 20h

Type: R

Table 68. Collision display register

Bit

Name

Default

Function

Comments

c_byte3

Number of full bytes before the

bit collision happened.

The Collision display register range covers

ISO14443A anticollision command. If collision (or

framing error interpreted as collision) happens in

a longer message, the Collision display register

is not set.

If I_err1 is set then c_byte<3:0> and c_bit<2:0>

do not contain valid data.

c_byte2

c_byte1

c_byte0

3c_bit2

Number of bits before the

collision in the byte where the

collision happened

2c_bit1

1c_bit0

c_pb

1: Collision in parity bit

0: no collision

This error is reported if the first detected collision

is in a parity bit.

If I_err1 is set then c_pb dos not contain valid

data.

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