HT-CM400 NXP Semiconductors, HT-CM400 Datasheet - Page 69

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

98-02-10
3.8.6 WriteControl
This command writes a new value to the control bytes Control_RW and Control_WO into the
EEPROM of the read/write device.
Initial values stored in the EEPROM of a delivered read/write device:
ATTENTION: Once a bit in Control_RW or Control_WO has been set to ‘0’ it is
impossible to change it back to one. We strongly recommend to read Chapter
„Personalization“ carefully before using this command.
C-Function: void proloc_WriteControl (BYTE_T control_rw, BYTE_T control_wo);
Header-File: PROLIB6.H
Serial protocol:
HOST - READ/WRITE DEVICE
Control_RW: see Chapter „Personalization“
Control_WO: see Chapter „Personalization“
READ/WRITE DEVICE - HOST
Status:
0x02 Status
0x04
Control_RW = 0x7F
Control_WO = 0xFF
'c'
- 1 ... SERIAL ERROR (in this case the error can also mean, that the read/write
Control_RW Control_WO BCC
0 ... no error
BCC
device is not in the KeyInit Mode!)
Page 69 (104)
Rev. 1.0
Communication Reader-Host
Htswp.doc/HS