AS39513 datasheet(69/108 Pages) AMSCO

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ams Datasheet

Page 69

[v1-10] 2018-Apr-25

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AS39513 − Detailed Description

Inventory Command Flags

Figure 45:

Inventory Command Flags

The Non-Inventory Flags are:

where:

SUBCAR – Sub-carrier selection.

0 = Use a single sub-carrier frequency in the response.

1 = Use two sub-carriers in the response.

DRATE – Data rate selection.

0 = Use low data rate.

1 = Use high data rate.

SELECT – Use selected or addressed tag.

0 = Command request will be executed according to the ADDR

bit.

1 = Command request will be executed only if the AS39513 RFID

interface is in the “select” state. The ADDR bit should be 0, and

the UID field is not included in the request.

ADDR – Addressing mode.

0 = Request is not addressed. The UID field is not used. The

AS39513 always responds to the request.

1 = Request is address to a specific UID. The UID field is used,

and the AS39513 responds only if its UID matches that in the

command request.

Flag Bits

Flag Name

Bit Value Meaning

SUBCAR

Single

Double

DRATE

Low

High

Inventory

1 for inventory

Protocol ext.

Always 0

RFU

AFI

Always 0

Not supported

NBSLOTS

16 slots

1 slot

OPTION

Always 0

RFU

Always 0

RFU

Bit

NFLAGS

OPTION

ADDR

SELECT

DRATE

SUBCAR

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