HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 67

• Manufacturer Part Number: HT-CM400
• Description: Ht Cm400; Ht Rm440 Family; Ht Rm800 Family Interface Protocol Reader - Host
• Manufacturer: NXP Semiconductors

98-02-10
3.8.4 WriteEEPROM
This command writes new personalization data (4 data bytes) into the EEPROM of the read/write
device.
This command requires the old data to be transmitted as well, which means that data can only be
changed if the user knows the old written data.
Access rights and conformity between the sent old data and the stored data are verified before
command execution.
C-Function: void proloc_WriteEEPROM (BYTE_T num, DWORD_T od,
Header-File: PROLIB6.H
Serial protocol:
HOST - READ/WRITE DEVICE
num:
OD[0] ... OD[3]:
ND[0] ... ND[3]:
READ/WRITE DEVICE - HOST
Status:
If any error occurs KeyInit Mode is exited immediately.
0x0B
0x02
Status
'Y'
defines which personalization data is to be written
0x00 ... Password
0x01 ... Key A
0x02 ... Key B
0x03 ... Logdata 0A
0x04 ... Logdata 0B
0x05 ... Logdata 1A
0x06 ... Logdata 1B
-11 ... EEPROM WRONG OLD DATA
-12 ... EEPROM WRITE PROTECTED
- 1 ... SERIAL ERROR (in this case the error can also mean, that the read/write
0 ... no error
BCC
num
Old data
New data to be written
device is not in the KeyInit Mode!)
7
OD[0]
0
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Page 67 (104)
Rev. 1.0
DWORD_T nd);
31 24
OD[3]
7
ND[0]
0
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Communication Reader-Host
31 24
ND[3]
Htswp.doc/HS
BCC