Int 15H Sfr Functions - DIGITAL-LOGIC MICROSPACE PCC-P5 Technical User's Manual

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9.4.1 INT 15h SFR Functions

All functions are performed by starting the SW-interrupt 15hex with the following arguments:
Function:
Number:
Description:
Input Values:
Output Values:
Function:
Number:
Description:
Input Values:
Output Values:
Function:
Number:
Description:
Input Values:
Output Values:
Function:
Number:
Description:
Input Values:
WRITE TO EEPROM
E0h
Writes the Data byte into the addressed User-Memory-Cell from the serial
EEPROM. The old value is automatically deleted.
AH = E0h Function Request
AL
B X
SI
protected)
DLAG-Password for access to the DLAG-Memory-Cells
None, all registers are preserved.
READ FROM EEPROM
E1h
Reads the Data byte from the addressed User-Memory-Cell of the serial
EEPROM.
AH = E1h Function Request
B X Address in the EEPROM
SI 1234h User-Password
DLAG-Password for access to the DLAG-Memory-Cells
AL read databyte
WRITE SERIALNUMBER
E2h
Writes the Serialnumber from the serial EEPROM into the addressed DLAG-
Memory-Cell. The old value is automatically deleted.
AH = E2h Function Request
DX,CX,BX
SI
None, all registers are preserved.
READ SERIALNUMBER
E3h
Reads the serialnumber from the board into the serial EEPROM.
AH = E3h Function Request
Databyte to store
Address in the EEPROM (0-1024 Possible)
1234h User-Password (otherwise EEP is write-
Serialnumber (Binary, not Ascii)
Password
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PCCP5 Manual V2.3
(0-1024 Possible)