HTMS8201FTK datasheet(34/57 Pages) NXP

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HTMS1x01_8x01

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Product data sheet

COMPANY PUBLIC

Rev. 3.3 — 17 October 2014

152933

34 of 57

NXP Semiconductors

HTMS1x01; HTMS8x01

HITAG µ transponder IC

14.3 INVENTORY

[Advanced, Advanced+]

Upon reception of this command without error, all transponder ICs in the ready state shall

perform the anticollision sequence. The inventory (INV) flag shall be set to '1'. The NOS

flag determines whether 1 or 16 slots are used.

If a transponder IC detects any error, it shall remain silent.

[1]

Error and CRC are Manchester coded, UID is dual pattern coded

[2]

Response within the according time slot

Error Flag set to ’0’ indicates no error.

Table 20.

INVENTORY - Request format (00h)

Flags

Command

Mask length

Mask value

CRC-16

Description

(16)

No. of bits

10(1)10

000000

n UID length

UID Mask

AC with 1

timeslot

00(1)10

000000

n UID length

UID Mask

AC with 16

timeslot

Table 21.

Response to a successful INVENTORY request [1][2]

Error Flag

Data

CRC-16

Description

48 - n

(16)

No. of bits

Remaining UID without mask value

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