MAX66120 MAXIM [Maxim Integrated Products], MAX66120 Datasheet - Page 18

• Manufacturer Part Number: MAX66120
• Description: ISO 15693-Compliant 1Kb Memory Fob Powered Entirely Through the RF Field
• Manufacturer: MAXIM [Maxim Integrated Products]

ISO 15693-Compliant 1Kb Memory Fob
The Read Multiple Blocks command allows for retriev-
ing the data of up to three memory blocks. This com-
mand uses two command-specific parameters, which
are the starting block number and the number of blocks
to read. Valid starting block numbers are 00h to 11h.
Permissible number of block values are 0, 1, and 2,
corresponding to 1, 2, and 3 blocks. A request that
attempts reading beyond block number 11h generates
a response with error code 10h. If the Option_flag bit is
set, the response includes the block’s security status.
The security status codes are the same when reading
single blocks. See the Read Single Block section for
more details.
18
REQUEST FLAGS
REQUEST FLAGS
______________________________________________________________________________________
Response Data for the Read Multiple Blocks Command (No Error, Option_flag Not Set)
RESPONSE FLAGS
(1 Byte)
(1 Byte)
RESPONSE FLAGS
RESPONSE FLAGS
Response Data for the Read Multiple Blocks Command (No Error, Option_flag Set)
00h
00h
00h
RESPONSE FLAGS
Response Data for the Custom Read Block (No Error, Option_flag Not Set)
Response Data for the Custom Read Block (No Error, Option_flag Set)
00h
Read Multiple Blocks
COMMAND
COMMAND
A4h
23h
SECURITY STATUS
(1 Byte)
Request Data for the Read Multiple Blocks Command
SECURITY STATUS
MEMORY DATA
MFG CODE
(8 Bytes)
(8 Bytes)
(1 Byte)
2Bh
UID
The Custom Read Block command allows for retrieving
the data of a single memory block. This command uses
one command-specific parameter, which is the memory
block number. Valid block numbers are 00h to 11h. If
the Option_flag bit is set, the response includes the
block’s security status. The security status codes are
the same as when reading single blocks. See the Read
Single Block section for more details.
Request Data for the Custom Read Block
MEMORY DATA
Repeated as needed
(8 Bytes)
STARTING BLOCK
NUMBER
(8 Bytes)
(1 Byte)
UID
MEMORY DATA
(8 to 24 Bytes)
INTEGRITY BYTES
MEMORY DATA
Custom Read Block
(8 Bytes)
(2 Bytes)
INTEGRITY BYTES
NUMBER OF BLOCKS
BLOCK NUMBER
(2 Bytes)
(1 Byte)
(1 Byte)