LRI1K datasheet(63/86 Pages) STMICROELECTRONICS

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LRI1K

Commands codes

Doc ID 17170 Rev 3

63/86

20.14

Get Multiple Block Security Status

When receiving the Get Multiple Block Security Status command, the LRI1K sends back the

block security statuses. The blocks are numbered from '00h’ to '1Fh' in the request. The

“Number of blocks” value corresponds to the number of blocks whose security statuses are

requested after the first block.

For example, if the “number of blocks” field contains the value 06h, the security statuses of 7

blocks will be output.

The address of the last block whose security status is requested must not exceed 1Fh. In

other words, “First block number” + “Number of blocks” must not exceed 1Fh. In request,

option flag must be set to 0.

Request parameters:

●

UID (Optional)

●

First block number

●

Number of blocks

Response parameters:

●

Block Locking Status (see Table 61: Block Locking status)

●

N block of data

Table 59.

Get Multiple Block Security Status request format

Request

SOF

Request_

flags

Get Multiple

Block

Security

Status

UID

First

block

number

Number

blocks

CRC16

Request

EOF

8 bits

2Ch

64 bits

8 bits

16 bits

Table 60.

Get Multiple Block Security Status response format when Error_flag is

NOT set

Response SOF

Response_flags

Block Locking

Status

CRC16

Response EOF

8 bits

8 bits(1)

Repeated as needed.

16 bits

Table 61.

Block Locking status

All 0

0: Current block not locked

1: Current block locked

Table 62.

Get Multiple Block Security Status response format when Error_flag is

set

Response SOF

Response_flags

Error code

CRC16

Response EOF

8 bits

16 bits

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