OMNIKEY HF MIFARE Easy Module - RFID Webshop
OMNIKEY HF MIFARE Easy Module - RFID Webshop
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 />
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