HID Global Corporation 5553 Benutzerhandbuch
1508-USM-00-0-04
HF Multi ISO RFID Reader User Manual, Firmware V1.4
2.3.7.1
Downlink length – Version 1 & Version 2 (LSB)
The Downlink length indicates only the data length. It does not include the other header bytes,
such as option and transmission factor. For Version 2 this is the LSB byte of the Downlink length.
such as option and transmission factor. For Version 2 this is the LSB byte of the Downlink length.
2.3.7.2
Option byte – Version 1 (deprecated)
This byte contains the transfer options for Option 1
Table 11 - Version 1 (Option Byte)
Bit
Description
0 Start
communication
1 End
communication
2 Cold
reset
3 RFU
4
T1 length parsing
5 Warm
reset
6
T=0 procedure byte 60h processing
7
0h – Version 1
Start communication
If the start communication flag is set, the command responds with an ATR from the SAM. If errors
occur, the SAM is automatically switched off and the BCC of the ATR is not checked.
occur, the SAM is automatically switched off and the BCC of the ATR is not checked.
End communication
Do not remove the SAM until End communication is sent.
Cold reset
If cold reset is set, the command responds with an ATR from the SAM after the cold reset of the
SAM is complete. In this case, the BCC of the ATR is not checked.
SAM is complete. In this case, the BCC of the ATR is not checked.
T1 length parsing
If T1 length parsing is set, the length of a T1 frame is checked so there is no additional timeout
needed to get all the characters. This only works for frames with 1 byte LRC, but not with 2 bytes
CRC.
needed to get all the characters. This only works for frames with 1 byte LRC, but not with 2 bytes
CRC.
Warm reset
If warm reset is set, the command responds with an ATR from the SAM after the warm reset of
the SAM is done. In this case, the BCC of the ATR is not checked.
the SAM is done. In this case, the BCC of the ATR is not checked.
T=0 procedure byte 60h processing
If set, the procedure byte 60h of the T=0 protocol is automatically processed.
Page 98 of 144
August 2010
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