MN63Y1208 Datasheet, PDF (10/120 Pages) Panasonic Semiconductor – Built-in 4-Kbit FeRAM non-volatile memory with fast write and low power consumption

Chapter 1 Overview
1.3 Operation Mode
This RFID provides three operation modes of RF communication, serial communication, and tunnel.
Figure 1-2 gives the overview of each operation mode.
RF communication mode
This mode is used for communication between reader/writer and RFID. Reader/writer is the master and RFID
is the slave. Key commands are read and write commands to FeRAM of RFID. This mode allows batteryless
operations that use only the power supplied from the antenna of reader/writer.
For more information about RF communication mode, see Chapter 4 RF Communication Mode.
Serial communication mode
This mode is used for communication between host and RFID. Host is the master and RFID is the slave. Key
commands are read and write commands to FeRAM of RFID. This mode requires a power supply to the
supply voltage pin (VDDEX) of RFID.
For more information about serial communication mode, see Chapter 5 Serial Communication Mode.
Tunnel mode
This mode is used for communication between reader/writer and host via RFID. Reader/writer is the master
and host is the slave. Key commands are read and write commands to host. This mode requires a power
supply to the supply voltage pin (VDDEX) of RFID.
For more information about serial communication mode, see 0.
Additionally, for state transition diagram in each operation mode, see Section 9.2 State Transition Diagram
in Operation Mode.
RF communication mode
R/W
Master
Serial communication mode
RFID
Slave
Host
R/W
Tunnel mode
RFID
Slave
Host
Master
R/W
RFID
Master
Figure 1-2 Operation Mode
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Host
Slave