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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<strong>HF</strong> <strong>MIFARE</strong> <strong>Easy</strong> <strong>Module</strong><br />
User Manual, Firmware V1.0<br />
1506-USM-01-0-03<br />
4.2.4 Data<br />
This part contains the command and data. The command values are the same as in ASCII<br />
protocol mode (‘x’, ‘s’, …) whereas data is transmitted binary.<br />
The length of the command block depends on the instruction.<br />
4.2.5 Block Check Character (BCC)<br />
The BCC is used to detect transmission errors. The BCC is calculated XOR-ing each byte of the<br />
transmission frame excluding the STX/BCC and ETX character.<br />
BCC = StatID)<br />
XOR ( Length)<br />
XOR ( Data ) XOR...<br />
XOR ( Data )<br />
(<br />
0 N<br />
4.2.6 ETX<br />
End of transmission. (03h)<br />
4.2.7 Remarks<br />
If the reader device receives an invalid instruction frame (for example BCC wrong) or the<br />
requested station ID does not match the internal ID of the reader, the command is not executed.<br />
The reader waits for the next valid frame.<br />
The automatic binary timeout (see protocol configuration register) is used to detect incomplete<br />
binary frames.<br />
The reader module answers in the same telegram format, with the ID-field set to 0. The Data block<br />
of the answers in binary protocol mode does match the ASCII mode answers, with the only<br />
difference that data values are transmitted binary instead of ASCII Hex.<br />
November 4, 2008 Page 23 of 63<br />
© 2008 HID Global Corporation. All rights reserved.
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