RWD_QT Datasheet, PDF (16/19 Pages) rfsolutions.ltd – The MicroRWD “QT” (Quad-Tag) version is a complete 125kHz reader solution for Hitag 1,

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Hitag 2 Configuration Byte
The 8 bit configuration byte located at the start of page 3 defines the basic mode of the Hitag
2 transponder and whether certain parts of it’s memory are locked or open for Read/Write
operations. Note that the MicroRWD H2 only supports PASSWORD mode and can
communicate with Hitag 2 tags with the configuration byte = 0x06 (or 0x46 with
configuration and TAG Password locked).
CONFIGURATION OR PASSWORDS MUST NOT BE CHANGED UNLESS THE
OPERATION OF THE HITAG 2 TRANSPONDER IS UNDERSTOOD.
Configuration Byte (Page 3, byte 0)
b7 b6 b5 b4 b3 b2 b1 b0
| | | |0110
| | | 0 = Page 6 and 7 read/write
| | | 1 = Page 6 and 7 read only
|||
| | 0 = Page 4 and 5 read/write
| | 1 = Page 4 and 5 read only
||
| 0 = Page 3 read/write
| 1 = Page 3 read only, Configuration and TAG Password FIXED, THIS BIT IS OTP
|
0 = Page 1 an 2 read/write
1 = Page 1 no read/no write, Page 2 (RWD Password) read only, THIS BIT IS OTP
Micro RWD (EM) H400x / 4102 Protocol
The MicroRWD H400X Reader mode is a complete reader and tag acceptance solution for
EM Marin H4001/H4102 and compatible RFID transponders.
Read H400x Tag
Command to read 5 bytes of data from H400x (40 bit) memory array. If the read was
successful, indicated by acknowledge status flags then five bytes of tag data follow.
B7
B0
Command: 0 1 0 1 0 0 1 0
(ASCII “R”, 0x52)
Argument1: x x x x x x x x
(Dummy Page number e.g 00)
Acknowledge: 1 1 F F F F F X
(F = Status flags)
Data only follows if read was successful
Reply1:
DDDDDDDD
Reply2:
DDDDDDDD
Reply3:
DDDDDDDD
Reply4:
DDDDDDDD
Reply5:
DDDDDDDD
(D = msb data read from H400x)
(D = lsb data read from H400x)
Note that for the Read Tag command, if an error flag has been set in the Acknowledge code
then there will be NO following data.
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