MN63Y1208 Datasheet, PDF (63/120 Pages) Panasonic Semiconductor – Built-in 4-Kbit FeRAM non-volatile memory with fast write and low power consumption

Chapter 4 RF Communication Mode
4.3.9.2 ATTRIB
„ Purpose
Exchanges protocol signal information between reader/writer and RFID, and causes the RFID to transition to
the state in which command processing is enabled.
„ Command message
z Format
Command code Identifier Param1 Param2 Param3 Param4 CRC_B
1 byte
4 bytes 1 byte 1 byte 1 byte 1 byte 2 bytes
z Data field
Field
Command code
Identifier
Param1
Param2
Setting
Remarks
0x1D
Sets PUPI for ATQB response.
0x00
Bits 7-6
Bits 5-4
This RFID operates with:
Minimum value of RFID response time
to reader/writer command (TR0): (fs =
848 kHz)
00b: 64/fs (106 Kbps), 64/fs (212
Kbps)
01b: 48/fs (106 Kbps), 32/fs (212
Kbps)
10b: 16/fs (106 Kbps), 8/fs (212 Kbps)
11b: RFU
Minimum value of the time (TR1) until
x bits 1-0 ignored
x bits 7-6 set to 00b (when
these bits are set to 11b)
x bits 5-4 set to 00b (when
these bits are set to 11b)
This RFID operates with:
x Minimum TR0: 64/fs
x Minimum TR1: 80/fs
x EOF not omitted
x SOF not omitted
RFID starts data transmission after
subcarrier is generated:
(fs = 848 kHz)
00b: 80/fs (106 Kbps), 80/fs (212
Kbps)
01b: 64/fs (106 Kbps), 32/fs (212
Kbps)
10b: 16/fs (106 Kbps), 8/fs (212K bps)
11b: RFU
Bit 3
0: Do not omit EOF.
1: Omit EOF.
Bit 2
0: Do not omit SOF.
1: Omit SOF.
Bits 1-0 RFU (Set to 00b.)
0xXX (For XX, see the settings below.)
Bits 7-6 RFID→PCD data rate
00b: 106 Kbps
01b: 212 Kbps
Bits 5-4 PCD→PICC data rate
00b: 106 Kbps
01b: 212 Kbps
Bits 3-0 Maximum receptible frame size of
x If parameters other than
those on the left
(communication settings or
reader/writer frame size
which the RFID does not
support) are set, the RFID
will generate no response.
x If the data rate setting differs
between RFID→PCD and
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