MN63Y1208 Datasheet, PDF (91/120 Pages) Panasonic Semiconductor – Built-in 4-Kbit FeRAM non-volatile memory with fast write and low power consumption

Command other than QUERY
Less than QWT setting time
RF-I/F
Tunnel mode
command
Response with an error
(No response from the host)
Response to
tunnel mode
NIRQ
Slave reception
Slave transmission
Command other
than QUERY
Response with
BUSY
Figure 7-5 Timeout of Waiting for QUERY Command (Command Other Than QUERY)
7.3.3.2 Wait Time for ANSWER Command
The time sequence when the RFID receives no response from the host while it waits for an ANSWER
command is shown in Figure 7-6 . The measurement of timeout starts immediately after the first response (to
normal QUERY command) is sent.
No response from the host
RF-I/F
Tunnel mode
command
NIRQ
Slave reception
QUERY
command
Slave transmission
Response to
QUERY
AWT setting time
Response with an error
(No response from the host)
Tunnel mode
command
Figure 7-6 Timeout of Waiting for ANSWER Command (No Response from the Host)
Next, the time sequence when the RFID receives a command other than ANSWER from the host while it waits
for an ANSWER command is shown in Figure 7-7 . Note that the timeout measurement time does not include
the time from serial communication command issue to the response to the command.
Command other than ANSWER
RF-I/F
Tunnel mode
command
NIRQ
Slave reception
Slave ^IRQSEL=0
transmission
QUERY
command
(t0 + t2) > AWT setting time (*1)
Response with an error
t0
t1
t2
(No response from
the host)
Tunnel mode
command
Response to
QUERY
Command other
than ANSWER
Response with
BUSY (*2)
Note (*1):
The timeout measurement time does
not include the time from serial
communication command issue to
the response to the command.
(*2) When a QUERY command is sent,
a response to QUERY is re-sent.
Figure 7-7 Timeout of Waiting for ANSWER Command (Command Other Than ANSWER)
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