M24LR16E-R datasheet(105/143 Pages) STMICROELECTRONICS

105 / 143 page

M24LR16E-R

Command codes

Doc ID 018932 Rev 8

105/143

Response parameter:

●

No parameter

Response parameter:

●

Error code as Error_flag is set:

–

10h: the specified block is not available

–

11h: the specified block is already locked and thus cannot be locked again

–

14h: the specified block was not successfully locked

When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that

starts the Lock-sector command to the end of the M24LR16E-R response.

When configured in the RF write in progress mode, the RF WIP/BUSY pin is tied to 0 for the

duration of the internal write cycle (from the end of a valid Lock sector command to the

beginning of the M24LR16E-R response).

26.16

Present-sector Password

On receiving the Present-sector Password command, the M24LR16E-R compares the

requested password with the data contained in the request and reports whether the

operation has been successful in the response. The Option_flag is supported.

During the comparison cycle equal to Wt, there should be no modulation (neither 100% nor

10%), otherwise, the M24LR16E-R the Password value may not be correctly compared. The

Wt time is equal to t1nom + 18 × 302 µs.

After a successful command, the access to all the memory blocks linked to the password is

changed as described in Section 4.1: M24LR16E-R block security in RF mode.

Table 83.

Lock-sector response format when Error_flag is set

Response

SOF

Response_

flags

Error code

CRC16

Response

EOF

8 bits

16 bits

Figure 68.

Lock-sector frame exchange between VCD and M24LR16E-R

VCD

SOF

Lock-sector

request

EOF

M24LR16E-R

<-t1-> SOF

Lock-sector

response

EOF

Lock sequence

when error

M24LR16E-R

<--------------- Wt -----------> SOF

Lock-sector

response

EOF

M24LR16E-R 数据表(PDF) 105 Page - STMicroelectronics

M24LR16E-R 数据表(HTML) 105 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

M24LR16E-R 数据表(PDF) 105 Page - STMicroelectronics

M24LR16E-R 数据表(HTML) 105 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载