MN63Y1208 Datasheet, PDF (49/120 Pages) Panasonic Semiconductor – Built-in 4-Kbit FeRAM non-volatile memory with fast write and low power consumption

Chapter 4 RF Communication Mode
Field name
PCB
CID
NAD
INF
ECD
Table 4-11 ISO/IEC14443-4 Field Definition
Byte length
1
1
1
n
2
Definition
Protocol Control Byte. See 4.3.3 Protocol Control
Card Identifier (optional) Used to identify RFID.
(Not supported by this RFID; not added.)
Node Address (optional). Used to establish a logical
channel.
(Not supported by this RFID; not added.)
Command message or response message
See CRC_B ISO/IEC14443-3.
4.3.3 Protocol Control
PCB (Protocol Control Byte) shown in Figure 4-14 and Table 4-11 is provided for ISO/IEC1443-4 protocol
control, and used to send information necessary for data transmission control. This protocol has 3 block
types. Table 4-12 lists the definition of block type. This RFID's protocol control specification is given in Table
4-13.
Figure 4-15, Figure 4-16, and Figure 4-17 illustrate I-block, R-block, and S-block codings, respectively.
Table 4-12 Block Type
Block name
Definition
I-block
R-block
S-block
Used to send the information of application layer.
Used to send ACK (Acknowledge) or NAK (NegativeAcknowlege).
R-block does not include INF field.
An R-block corresponding to the last reception block will be sent.
Used to send a control information. The following 2 types are provided:
1. Wait time extension request (WTX)
2. DESELECT command
Item
CID
(Card IDentifier)
NAD
(Node Address)
Chaining
ACK/NCK
response
WTX
DESELECT
command
Table 4-13 Protocol Control Specification
Desctiption
By this RFID
First field parameter of ISO/IEC14443-4 frame
(optional). Used to identify RFID.
First field parameter of ISO/IEC14443-4 frame
(optional). Used to establish a logical channel.
Used to transmit/receive divided data
Used to send ACK (Acknowledge) or NAK
(NegativeAcknowlege).
Used to extend the wait time for response from
RFID
Not supported
Not supported
Supported (however, the size of
divisible frame size is 64 bytes or
more.)
Supported
Not supported
Used to deselect the RFID.
Supported
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