HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 34
HT-CM400
Manufacturer Part Number
HT-CM400
Description
Ht Cm400; Ht Rm440 Family; Ht Rm800 Family Interface Protocol Reader - Host
Manufacturer
NXP Semiconductors
Datasheet
1.HT-CM400.pdf
(104 pages)
- Current page: 34 of 104
- Download datasheet (360Kb)
Communication Reader-Host
3.7.19 ReadPublicB_LT
This command sets the read/write device to Permanent Reading Mode for HITAG 2 transponders
being in Public Mode B.
The read/write device attempts continuously to synchronize on and read a HITAG 2 transponder
in Public Mode B. If it succeeds and all checks report positive results, the device sends the 16
data bytes (a 128-bit-stream that has to be prepared afterwards for subsequent treatment) via the
serial interface. After that the read/write device returns to Normal Mode. The software running
on the host has to decode the read data depending on the chosen data protocol.
To put the read/write device back to normal mode, a StopCommand should be sent. Do not use a
Reset, since Reset can cause undesirable side effects (resetting output pins).
Since the tag sends its 128-bit data continuously, the user must store its data on the tag in a way
which allows for synchronization.
C-Function: void proloc_ReadPublicB_LT (BYTE_T *data);
Header-File: PROLBLT6.H
Serial protocol:
HOST - READ/WRITE DEVICE
READ/WRITE DEVICE - HOST
Status:
Htswp.doc/HS
0x02
0x12
0x9E
Status
-1 ...
0 ... no error
BCC
SERIAL ERROR
data[0]
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Page 34 (104)
Rev. 1.0
data[15]
BCC
98-02-10
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