M24LR64E-R datasheet(105/140 Pages) STMICROELECTRONICS

105 / 140 page

M24LR64E-R

Command codes

Doc ID 022712 Rev 3

105/140

Response parameter:

●

Error code as Error_flag is set:

–

10h: the password number is incorrect

–

0Fh: the present password is incorrect

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

starts the Present Sector Password command to the end of the M24LR64E-R response.

When configured in the RF write in progress mode, the RF WIP/BUSY remains in high-Z

state.

26.17

Fast Read Single Block

On receiving the Fast Read Single Block command, the M24LR64E-R reads the requested

block and sends back its 32-bit value in the response. The Option_flag is supported. The

data rate of the response is multiplied by 2.

The Protocol_extension_flag should be set to 1 for the M24LR64E-R to operate correctly. If

the Protocol_extension_flag is at 0, the M24LR64E-R answers with an error code.

The subcarrier_flag should be set to 0, otherwise the M24LR64E-R answers with an error

code.

Figure 69.

Present-sector Password frame exchange between VCD and M24LR64E-R

VCD

SOF

Present-

sector

password

response

OR error

0F (bad

password)

EOF

M24LR64E-R

<-t1-> SOF

Present-

sector

password

response

EOF

sequence when

error

M24LR64E-R

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

Present-

sector

password

response

EOF

Table 87.

Fast Read Single Block request format

Request

SOF

Request_

flags

Fast Read

Single

Block

IC Mfg

code

UID(1)

Block

number

CRC16

Request

EOF

8 bits

C0h

02h

64 bits

16 bits

M24LR64E-R Datasheet(PDF) 105 Page - STMicroelectronics

M24LR64E-R Datasheet(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

Datasheet Download

Link URL