HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 87
Manufacturer Part Number
Ht Cm400; Ht Rm440 Family; Ht Rm800 Family Interface Protocol Reader - Host
4.2.2 Operation-Modes and Configuration
With the Configuration Byte the operation-mode and the access rights to the memory can be
selected. During Power-Up of the transponder the Configuration Byte is read from the
If you change keys, passwords or configuration, you have to place the transponder
directly on the antenna or hold it directly to it (0-distance)! In order to avoid any errors
do not move the transponder during this write process and be sure that you are in a safe
environment without electrical noise.
220.127.116.11 Modes of Operation
The HITAG 2 can be operated in several modes.
Mode for writing or reading the transponder with encrypted data transmission.
Mode for writing or reading the transponder with plain data transmission.
Public Mode A (Manchester):
Read-only mode emulating Philips Semiconductors´ MIRO transponders resp. EM H400x
The 64 bits of the user Pages 4 and 5 are cyclically transmitted to the base station.
See chapter „Communication Reader-Host“ (command description for ReadMiro) for an example
of allocating Pages 4 and 5 with MIRO-compatible data.
Public Mode B (Biphase):
Read-only mode according to ISO standards 11784 and 11785 for animal identification.
The 128 bits of the user Pages 4 to 7 are cyclically transmitted to the base station.
See chapter „Communication Reader-Host“ (command description for ReadPublicB_LT) for an
example of allocating Pages 4 to 7 for animal identification.
Public Mode C (Biphase):
Read-only mode emulating the read operation of the PCF793X (with a slightly different Program
In the Public Mode C the 128 bits of the user Pages 4 to 7 are cyclically transmitted to the
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