M24LR64-R datasheet(106/128 Pages) STMICROELECTRONICS

106 / 128 page

Commands codes

M24LR64-R

106/128

Doc ID 15170 Rev 10

tNRT and tSOF are dependent on the M24LR64-R-to-VCD data rate and subcarrier

modulation mode.

26.19

Fast Initiate

On receiving the Fast Initiate command, the M24LR64-R will set the internal Initiate_flag

and send back a response only if it is in the Ready state. The command has to be issued in

the Non Addressed mode only (Select_flag is reset to 0 and Address_flag is reset to 0). If an

error occurs, the M24LR64-R does not generate any answer. The Initiate_flag is reset after

a power off of the M24LR64-R. The data rate of the response is multiplied by 2.

The request contains:

●

No data

The response contains:

●

the flags

●

the Unique ID

Table 89.

Fast Initiate request format

Request

SOF

Request_flags

Fast

Initiate

IC Mfg

Code

CRC16

Request

EOF

8 bits

C2h

02h

16 bits

Table 90.

Fast Initiate response format

Response

SOF

Response

_flags

DSFID

UID

CRC16

Response

EOF

8 bits

64 bits

16 bits

Figure 68.

Fast Initiate frame exchange between VCD and M24LR64-R

VCD

SOF

Fast Initiate request

EOF

M24LR64-

<-t1-> SOF Fast Initiate response EOF

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