HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 96
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: 96 of 104
- Download datasheet (360Kb)
Personalization
Control_LT (only HITAG 2):
Control_LT (located in EEPROM of the read/write device) controls write accesses to the
following data:
ATTENTION:
You cannot change bits that have once been set to 0 !
*) Note for Bit 1 of Control_LT:
Htswp.doc/HS
BIT NUMBER
If the HITAG 2 transponder is in Password or Crypto Mode and a GetSnr_LT command is
processed, the incoming Password TAG of the transponder is checked whether it matches with
the Password TAG of the reader. If it doesn’t, the read/write device transmits the error-
message INCORRECT PASSWORD TAG to the host.
We recommend to activate „Check PW TAG“ (set bit 1 to zero) in order to increase the
security for GetSnr_LT and PollTags commands.
7
6
5
4
3
2
1
0
Key RW/WO
Key WO/0
Passw. TAG RW/
WO
Passw. TAG WO/0
Passw. RWD
RW/WO
Passw. RWD WO/0
Check PW TAG *)
Config Lock
BIT NAME
Control_LT allowed
Page 96 (104)
BIT-VALUE = 1
Rev. 1.0
write allowed
write allowed
write allowed
read allowed
read allowed
read allowed
read/write of
Off
read/write prohibited
read/write prohibited
read/write prohibited
Control_LT allowed
BIT-VALUE = 0
read prohibited
read prohibited
read prohibited
only read of
On
98-02-10
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