ib technology

16

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

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0

1

1

0

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0 = Page 6 and 7 read/write

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1 = Page 6 and 7 read only

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0 = Page 4 and 5 read/write

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1 = Page 4 and 5 read only

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0 = Page 3 read/write

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1 = Page 3 read only, Configuration and TAG Password FIXED, THIS BIT IS OTP

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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:

D D D D D D D D

(D = msb data read from H400x)

Reply2:

D D D D D D D D

Reply3:

D D D D D D D D

Reply4:

D D D D D D D D

Reply5:

D D D D D D D D

(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.