AS39513 datasheet(27/108 Pages) AMSCO

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ams Datasheet

Page 27

[v1-10] 2018-Apr-25

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AS39513 − Detailed Description

Manual Log Start

In addition to the delayed Start Log, the application can start

the logging manually (without a RFID reader). The manual

control can be of 2 types:

To manually execute the transaction from WAIT to

ACTIVE mode. When in WAIT mode, a pull-up current is

supplied to DIN pin. A falling edge on DIN, for instance

generated by an external button, manually cause the

transaction.

To manually execute a logging event when the device

is in ACTIVE mode. When in ACTIVE mode, a pull-up

current is supplied to DIN pin. A falling edge on DIN, for

instance generated by an external button, manually

cause the logging event.

During ACTIVE mode, a pull-up current is supplied to DIN, so

the only required external component is the button. A falling

edge on DIN generates a logging event and the logging will be

started.

Logging Mode Data Formats

The data formats for the various logging modes are shown in

Figures 15 to 19. The start address for the Measured (logged)

data is determined by APPBLKS. If APPBLKS = 0 the start address

for Measured data is byte address 0x004. Note each new

measurement is added in the memory from right to left with

the LSB of the next measurement starting at the first free bit

from the right immediately next to the previous measurement.

AS39513 Scheda tecnica(PDF) 27 Page - ams AG