HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 80
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: 80 of 104
- Download datasheet (360Kb)
secret
Transponders
4 Transponders
4.1 HITAG 1 Transponders
4.1.1 Memory Organization
The 2 kBit EEPROM memory on the transponder is divided into 16 blocks.
Every block consists of 4 pages. A page is the smallest access unit.
Every page consists of 4 bytes (at 8 bits).
Block access is only available for Blocks 2-15, page access is available for Pages 0-63.
secret
Areas (or settings) with light dark background may be configured by the OEM client using the
Configuration Page (Page 1).
Memory locations marked with "secret" can only be accessed after a mutual authentication. An
enciphered data communication is used in that area.
Memory locations marked with "public" can be accessed without mutual authentication, no
encryption is used.
Block 0 includes the unique serial number (programmed during the production process), the
Configuration Page (configuration of the memory area) and the keys, Block 1 includes the
logdata.
Htswp.doc/HS
public
public
or
Block 0
Block 1
Block 4
Block 7
Block 8
Block 15
user data
user data
user data
OTP
r/w
r/w
or
Page 80 (104)
Rev. 1.0
ro
r/w
wo
OTP
0
Configuration of the memory is
done in the configuration page
secret
public
Serial Number
Configuration
read only
read/write
write only
one time programmable
neither read nor write
Logdata 1B
Logdata 0A
Logdata 1A
Logdata 0B
Key A
Key B
wo or 0
r/w
or
0
98-02-10
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