m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 112

• Manufacturer Part Number: m24lr16e-r
• Description: 16 Kbit Eeprom With Password Protection, Dual Interface & Energy Harvesting 400 Khz I²c Bus & Iso 15693 Rf Protocol At 13.56 Mhz
• Manufacturer: STMicroelectronics

Command codes
26.20
112/143
Fast Read Multiple Block
On receiving the Fast Read Multiple Block command, the M24LR16E-R reads the selected
blocks and sends back their value in multiples of 32 bits in the response. The blocks are
numbered from 00h to 1FFh in the request and the value is minus one (–1) in the field. For
example, if the “Number of blocks” field contains the value 06h, seven blocks are read. The
maximum number of blocks is fixed to 32 assuming that they are all located in the same
sector. If the number of blocks overlaps sectors, the M24LR16E-R returns an error code.
The Protocol_extension_flag should be set to 1 for the M24LR16E-R to operate correctly. If
the Protocol_extension_flag is at 0, the M24LR16E-R answers with an error code.
The Option_flag is supported. The data rate of the response is multiplied by 2.
The subcarrier_flag should be set to 0, otherwise the M24LR16E-R answers with an error
code.
Table 95.
1. Gray means that the field is optional.
Request parameters:
●
●
●
●
Table 96.
1. Gray means that the field is optional.
2. Repeated as needed.
Response parameters:
●
●
Table 97.
Request
Response
Reserved for future use.
SOF
b
SOF
7
Request flag
UID (Optional)
First block number
Number of blocks
Sector security status if Option_flag is set (see
N block of data
All at 0.
Request_
b
Response_
6
8 bits
flags
Fast Read Multiple Block request format
Fast Read Multiple Block response format when Error_flag is NOT set
Sector security status if Option_flag is set
flags
8 bits
b
5
Multiple
Block
Read
Fast
C3h
b
control bits
Password
status
security
4
8 bits
Sector
Doc ID 018932 Rev 7
IC Mfg
code
(2)
02h
(1)
b
3
protection bits
Read / Write
b
2
64 bits
UID
(1)
32 bits
Data
b
1
Table
(2)
0: Current sector not locked
1: Current sector locked
number
16 bits
block
First
97)
Number
blocks
8 bits
of
CRC16
16 bits
b
0
CRC16
16 bits
M24LR16E
Response
Request
EOF
EOF