m24lr64-r STMicroelectronics, m24lr64-r Datasheet - Page 76

• Manufacturer Part Number: m24lr64-r
• Description: 64 Kbit Eeprom With Password Protection & Dual Interface 400 Khz I?c Serial Bus & Iso 15693 Rf Protocol At 13.56 Mhz
• Manufacturer: STMicroelectronics

Commands codes
26.3
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Read Single Block
On receiving the Read Single Block command, the M24LR64-R reads the requested block
and sends back its 32-bit value in the response. The Protocol_extention_flag should be set
to 1 for the M24LR64-R to operate correctly. If the Protocol_extention_flag is at 0, the
M24LR64-R answers with an error code. The Option_flag is supported.
Table 37.
1. Gray means that the field is optional.
Request parameters:
●
●
●
Table 38.
1. Gray means that the field is optional.
Response parameters:
●
●
Table 39.
Table 40.
Response
Request
Response
Reserved for future
b
SOF
SOF
7
SOF
Option_flag
UID (optional)
Block number
Sector security status if Option_flag is set (see
4 bytes of block data
use. All at 0
b
Request_
6
Read Single Block request format
Read Single Block response format when Error_flag is NOT set
Sector security status
Read Single Block response format when Error_flag is set
8 bits
flags
Response_
8 bits
flags
Response_flags
b
5
8 bits
Read Single
control bits
b
password
Block
4
20h
Error code
Doc ID 15170 Rev 9
b
8 bits
3
status
security
Sector
8 bits
protection bits
b
64 bits
Read / Write
UID
2
(1)
(1)
b
Table 39: Sector security
1
32 bits
Data
number
0: Current sector not locked
1: Current sector locked
16 bits
Block
CRC16
16 bits
CRC16
16 bits
CRC16
16 bits
b
0
status)
M24LR64-R
Response
Response
Request
EOF
EOF
EOF