AS3953B datasheet(36/65 Pages) AMSOSRAM

No. de pieza	AS3953B

Descripción Electrónicos	14443 High Speed Passive Tag Interface

PDF	65 Pages

Scroll/Zoom	100%

Fabricante Electrónico	AMSOSRAM [ams-OSRAM AG]

Página de inicio	https://ams-osram.com/

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36 / 65 page

ams Datasheet

Page 35

[v1-04] 2016-Jan-07

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AS3953B − Application Information

EEPROM Read

In order to read data from EEPROM first a mode byte is sent,

followed by the word address byte (MSB first). Then one or more

words of data with address auto incrementing (packets of 4

bytes) are transferred to MISO output, always from the MSB to

the LSB. MOSI is sampled at the falling edge of SCLK; data to be

read from the AS3953B EEPROM is driven to MISO pin on rising

edge of SCLK and is sampled by the master at the falling edge

of SCLK. In case the word on defined address does not exist all

‘0’ data is sent to MISO.

Please note that SCLK frequency should not exceed 1MHz

during EEPROM Read (limited by EEPROM read access time).

Figure 45:

Reading of EEPROM Page

01 1 1 1 1 1 1

MSB Byte from

Address

<WA6-WA0>

/SS

SCLK

MOSI

LSB Byte from

Address

<WA6-WA0>

MISO

1µs min

AS3953B Datasheet(PDF) 36 Page - ams-OSRAM AG