ST25TV02K datasheet(30/90 Pages) STMICROELECTRONICS

30 / 90 page

Table 37. Definitions of response flags 1 to 8

Bit Nb

Flag

Level

Description

Bit 1

Error_flag

No error

Error detected. Error code is in the “Error” field.

Bit 2

RFU

Bit 3

RFU

Bit 4

RFU

Bit 5

RFU

Bit 6

RFU

Bit 7

RFU

Bit 8

RFU

6.2.8

Response and error code

If the Error_flag is set by the ST25TV02K/512 in the response, the Error code field is present and provides

information about the error that occurred.

Error codes not specified in Table 38. Response error code definition are reserved for future use.

Table 38. Response error code definition

Error code

Meaning

01h

Command is not supported.

02h

Command is not recognized (format error).

03h

The option is not supported.

0Fh

Error with no information given.

10h

The specified block is not available.

11h

The specified block is already locked and thus cannot be locked again.

12h

The specified block is locked and its contents cannot be changed.

13h

The specified block was not successfully programmed.

14h

The specified block was not successfully locked.

15h

The specified block is protected in read.

No response

It might indicate illegal programming

6.3

Timing definition

t1: VICC response delay

Upon detection of the rising edge of the EOF received from the VCD, the ST25TV02K/512 wait for a t1nom time

before transmitting their response to a VCD request or switching to the next slot during an inventory process.

Values of t1 are given in Table 39. Timing values.

t2: VCD new request delay

t2 is the time after which the VCD may send an EOF to switch to the next slot when one or more ST25TV02K/512

responses have been received during an Inventory command. It starts from the reception of the EOF from the

ST25TV02K/512s.

The EOF sent by the VCD may be either 10% or 100% modulated regardless of the modulation index used for

transmitting the VCD request to the ST25TV02K/512.

ST25TV02K ST25TV512

Timing definition

DS12074 - Rev 11

page 30/90

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