MN63Y1208 Datasheet, PDF (38/120 Pages) Panasonic Semiconductor – Built-in 4-Kbit FeRAM non-volatile memory with fast write and low power consumption

Chapter 4 RF Communication Mode
This RFID uses a block number to specify tunnel mode and encrypted communication. Table 4-6 shows the
mode settings for tunnel mode and encrypted communication. Bits 2 to 0 of byte D2 in 3-byte block element
format are used. All of bits 7 to 3 of byte D2 should be set to 0; otherwise the RFID responds with an error.
Table 4-6 Mode Settings
Block element format
2 bytes
3 bytes
Byte D2 of block No.
Bit 2 Bit 1 Bit 0
-
-
-
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
1
1
1
0
1
Meaning
Communication
mode
Encrypted communication
Plaintext (unencrypted)
communication
RF communication _{Encrypted communication}
mode
(private key)
Encrypted communication
(family key)
Reserved (Setting this field causes an error.)
Plaintext (unencrypted)
communication
Tunnel mode
Encrypted communication
(private key)
Encrypted communication
(family key)
Reserved (Setting this field causes an error.)
Table 4-7 shows the available maximum number of blocks. For READ command, the number is 13 for
plaintext (unencrypted) communication in RF communication mode. The maximum number of blocks for
WRITE command depends on the number of services.
Table 4-7 Maximum Number of Blocks
Command
Communication
mode
Encrypted communication
No. of services
Maximum No.
of blocks
RF communication
mode
Plaintext (unencrypted)
communication
1 to 15
15
READ
Encrypted communication
Plaintext (unencrypted)
1 to 15
15
Tunnel mode
communication, Encrypted
communication
WRITE
RF communication
mode, Tunnel mode
Plaintext (unencrypted)
communication, Encrypted
communication
1 to 8
9 to 11
12
11
Note: Encrypted communication uses 2 blocks for its parameter, so the available number of blocks for data is
"the value listed in Table 4-7 – 2."
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