HID Global Corporation 5553 ユーザーズマニュアル
HF Multi ISO RFID Reader User Manual, Firmware V1.4
1508-USM-00-0-04
Answer
Answer
Description
Uplink length+Data Response of card
'C' Error:
Collision
'F' Error:
General
failure
'N'
Error: No tag in field [addressed tag not present or not responding]
'O' Error:
Overflow
2.3.5.1
Normal Mode
Downlink length
The downlink length byte contains only the data length. This byte may not be zero. The CRC is
computed automatically and is not included in the downlink length.
computed automatically and is not included in the downlink length.
CRC generation – see
Option Byte - ISO 14443
or
Option Byte – ISO 15693
.
CRC generation is described in ISO 14443-3 Appendix B. If enabled, interpret the CRC with the
LSB first. If CRC checking and generation is disabled, the maximum size of data to receive and
transmit decreases to 253 bytes
LSB first. If CRC checking and generation is disabled, the maximum size of data to receive and
transmit decreases to 253 bytes
.
Option Byte - ISO 14443
This byte contains the transfer options for ISO 14443 and I-Code. For ISO 14443 type B, I-Code
and SR176 tags, only bits 2 and 3 are interpreted. The crypto unit is only activated after a
successful login.
and SR176 tags, only bits 2 and 3 are interpreted. The crypto unit is only activated after a
successful login.
Bit
Description
0
If set, parity generation is enabled
1
If set, parity is even, otherwise parity is odd
2
If set, CRC generation for transmission is enabled
3
If set, CRC checking for receiving is enabled
If set, the crypto unit is deactivated prior to start of transmission. Only the login
sequence switches on the crypto unit correctly.
sequence switches on the crypto unit correctly.
4
5, 6, 7
Bit framing. Number of bits of the last byte to transmit.
Option Byte - ISO 15693
This byte contains the transfer options for ISO 15693.
Bit
Description
7
If set the CRC is deactivated for transmit.
6
If set the CRC is deactivated for receive.
5 - 0
RFU
August 2010
Page 91 of 144
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