HTMS8201FTK datasheet(37/57 Pages) NXP

37 / 57 page

HTMS1x01_8x01

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Product data sheet

COMPANY PUBLIC

Rev. 3.3 — 17 October 2014

152933

37 of 57

NXP Semiconductors

HTMS1x01; HTMS8x01

HITAG µ transponder IC

14.7 READ MULTIPLE BLOCK

[

, Advanced, Advanced+]

Upon reception of this command without error, the transponder reads the requested

block(s) and sends back their value in the response. The blocks are numbered from 0 to

255.

The number of blocks in the request is one less than the number of blocks that the

transponder returns in its response i.e. a value of '6' in the ’Number of blocks’ field

requests to read 7 blocks. A value '0' requests to read a single block.

Error Flag set to ’0’ indicates no error.

Table 27.

READ MULTIPLE BLOCKS (advanced/advanced+) - request format (12h)

Flags

Command

Data 1

Data 2

Data 3

CRC-16

Description

(48)

(16)

No. of bits

00(1)00

010010

First block

number

Number of

blocks

without UID

in READY

state

10(1)00

010010

UID

First block

number

Number of

blocks

with UID in

READY

state

01(1)00

010010

First block

number

Number of

blocks

without UID

SELECTED

state

Table 28.

READ MULTIPLE BLOCKS (µ) - request format (12h)

Flags

Command

Data 1

Data 2

Data 3

CRC-16

Description

(48)

(16)

No. of bits

00(1)00

010010

First block

number

Number of

blocks

without UID

in READY

state

10(1)00

010010

UID

First block

number

Number of

blocks

with UID in

READY

state

Table 29.

Response to a successful READ MULTIPLE BLOCKS request

Error Flag

Data

CRC-16

Description

32 x Number of blocks

(16)

No. of bits

User memory block data

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