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OMNIKEY HF MIFARE Easy Module - RFID Webshop

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1506-USM-01-0-01<br />

<strong>HF</strong> <strong>MIFARE</strong> <strong>Easy</strong> <strong>Module</strong><br />

User Manual, Firmware V1.0<br />

4.4.3.9.2 Write port<br />

If user port is used as an output a 1kΩ resistor has to be integrated into the wire. Otherwise the<br />

reader device can be damaged.<br />

Port state<br />

Description<br />

00 Sets USER port to low<br />

01 Sets USER port to high<br />

Figure 4-13: Write User port settings<br />

4.4.3.10 Read block<br />

This command reads a data block on a card. Size of returned data depends on the used tag. The<br />

block address range depends on the present tag.<br />

Command<br />

Command<br />

'r'<br />

'rb'<br />

Data<br />

Block address (1 byte), valid range 00h – 40h<br />

Block address (1 byte)<br />

Answer<br />

Answer<br />

Data<br />

'F'<br />

'N'<br />

'O'<br />

Description<br />

block data (depends on tag type)<br />

Error: read failure<br />

Error: No tag in field<br />

Error: Operation mode failure<br />

Example<br />

Command Description<br />

rb05 Reads block 05.<br />

4.4.3.10.1 Read failure 'F'<br />

This error is returned if the reader receives either bad data or the block address exceeds the block<br />

address range of the sector.<br />

4.4.3.10.2 No tag in field 'N'<br />

The tag does not respond. There is either no tag present or not addressed.<br />

4.4.3.10.3 Operation mode failure 'O'<br />

The block address of the 'r' command is higher than 40h.<br />

The block address of the 'r' command conflicts with other commands, therefore the block address<br />

has to be limited to 40h.<br />

Use the 'rb' command instead.<br />

Page 38 of 63 November 4, 2008<br />

© 2008 HID Global Corporation. All rights reserved.

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