m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 89

• 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

M24LR16E
26.5
Read Multiple Block
When receiving the 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 at 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.
Table 47.
1. Gray means that the field is optional.
Request parameters:
●
●
●
●
Table 48.
1. Gray means that the field is optional.
2. Repeated as needed.
Response parameters:
●
●
Table 49.
Request
Response
Reserved for future
SOF
b
SOF
7
Request flags
UID (optional)
First block number
Number of blocks
Sector security status if Option_flag is set (see
N blocks of data
use. All at 0.
b
Request_
6
Response_
flags
8 bits
Read Multiple Block request format
Read Multiple Block response format when Error_flag is NOT set
Sector security status
8 bits
flags
b
5
Multiple
Block
Read
23h
control bits
b
Password
4
status
security
8 bits
Sector
Doc ID 018932 Rev 7
b
(2)
3
(1)
64 bits
UID
protection bits
b
(1)
Read / Write
2
32 bits
Data
b
number
Table
1
16 bits
block
First
(2)
0: Current sector not locked
1: Current sector locked
49)
of blocks
Number
8 bits
CRC16
16 bits
CRC16
b
Command codes
16 bits
0
Response
Request
EOF
EOF
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