HID Global Corporation 5553 Benutzerhandbuch
HF Multi ISO RFID Reader User Manual, Firmware V1.4
1508-USM-00-0-04
2.3.7 ‘e’ command – SAM data frame transfer
This command sends a custom data block to a SAM. Refer to ISO/IEC 7816 for more detail.
Note: The SAM interface hardware does not support error repetition and does not check the parity
bit. Inverse convention cards are also not supported. T=0 is not supported for non-ISO standard
speeds.
bit. Inverse convention cards are also not supported. T=0 is not supported for non-ISO standard
speeds.
There are two versions of this command. A flag bit in the option byte defines the command
version. Version 1 is the earlier one, now deprecated. Version 2 now supports ISO/IEC 7816
timeouts (BWT, CWT, WWT) both manual and automatic, TPDU interface for T=0, T=1 and a full
frame length with buffer mechanism
version. Version 1 is the earlier one, now deprecated. Version 2 now supports ISO/IEC 7816
timeouts (BWT, CWT, WWT) both manual and automatic, TPDU interface for T=0, T=1 and a full
frame length with buffer mechanism
‘e’ command
Command
Data
'e'
Version 1:
Downlink length (1 byte)
Option byte (1 byte)
Time-out (1 byte)
Transmission factor byte (1 byte)
Data (n bytes)
Version 2:
Downlink length LSB (1 byte)
Option byte (1 byte)
Downlink length MSB (1 byte)
Time-out (1 byte)
Transmission factor byte (1 byte)
Return length
Data (n bytes)
Downlink length (1 byte)
Option byte (1 byte)
Time-out (1 byte)
Transmission factor byte (1 byte)
Data (n bytes)
Version 2:
Downlink length LSB (1 byte)
Option byte (1 byte)
Downlink length MSB (1 byte)
Time-out (1 byte)
Transmission factor byte (1 byte)
Return length
Data (n bytes)
Answer – Version 1
Answer
Description
Data SAM
response
'P'
End of communication
'C'
Error: CRC error
'F'
Error: General failure or incorrect ATR
'N'
Error: No SAM detected
Answer – Version 2
Answer
Description
Error Code
00h – no error
01h – error
02h – wrong parameter
01h – error
02h – wrong parameter
Length
Data length (2bytes): optional, depends on command code used
Data SAM
response
August 2010
Page 97 of 144
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