MN63Y1208 Datasheet, PDF (114/120 Pages) Panasonic Semiconductor – Built-in 4-Kbit FeRAM non-volatile memory with fast write and low power consumption

Chapter 9 Annex
9.1 Exclusive Control
While in operation mode, this RFID performs an exclusive control not to receive other commands.
Figure 9-1 shows the exclusive control period. The period is from the start of an operation mode command to
the end of the response to the command. In tunnel mode, the period is from the start of the tunnel mode
command from reader/writer (see SNo.1 in Figure 7-1 Tunnel Mode Sequence) to the end of the response to
the command from RFID to reader/writer (see SNo.8 in Figure 7-1 Tunnel Mode Sequence).
Command
Response
Exclusive control period
Figure 9-1 Exclusive Control Period
Time
Table 9-1 shows the operations in exclusive control period for each operation mode. Illegular cases that are
not generated normally are indicated with parenthesis.
The RFID responds with BUSY to a command from the host if the slave address is identified. It also responds
with BUSY for unimplemented command.
In tunnel mode, the RFID operation differs between before and after IRQ output following the reception of a
tunnel mode command from reader/writer.
Table 9-1 Operation during Exclusive Control (Irregular Case in Parenthesis)
Current operation
mode
Receive command
Operation mode
From
Operation to a receive command
RF communication
mode
(RF communication
mode)
Serial communication
mode
(Tunnel mode)
(R/W) (No response)
Host Responds with BUSY.
(R/W) (No response)
Tunnel mode
(Host) (Responds with BUSY.)
Serial communication
mode
RF communication
mode
Serial communication
mode
Tunnel mode
R/W
Host
R/W
No response
Responds with BUSY (at reception during
command processing).
No response
Tunnel mode
(Tunnel mode)
(RF communication
mode)
Serial communication
mode
(Tunnel mode)
(Host)
(R/W)
Host
(R/W)
(No response)
(No response)
Responds with BUSY.
(No response)
Tunnel mode
Host See 7.1 Tunnel Mode Sequence.
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