DIGITAL-LOGIC MICROSPACE MSM800SEV, Техническое руководство пользователя

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DIGITAL-LOGIC AG
MSM800 SEV Manual V1.0A
69
12 S
PECIAL
P
ERIPHERALS
, C
ONFIGURATION
, S
OFTWARE
12.1 The Special Function Interface for MICROSPACE
Computers SFI
All functions are performed by starting the SW-interrupt 15hex with the following arguments:
12.1.1 INT 15h SFR Functions
Function: WRITE TO EEPROM
Number: E0h
Description:
Writes the Data byte into the addressed User-Memory-Cell from
the serial EEPROM. The old value is automatically deleted
Input values: AH 78h DLAG Int15 function
AL E0h Function request
BX Address in EEPROM (0-1024 Possible)
CL Data Byte to store
SI 1234h User-Password (otherwise EEP is write protected)
Output values: None, all registers are preserved
Function: READ FROM EEPROM
Number:
E1h
Description:
Reads the Data byte from the addressed User-Memory-Cell of
the serial EEPROM
Input values: AH 78h DLAG Int15 function
AL E1h Function request
BX Address in the EEPROM (0-1234 Possible)
SI 1234h User-Password (DLAG-Password for access to the
DLAG-Memory-Cells)
Output values: AL Data Byte
Function: WRITE SERIAL NUMBER
Number:
E2h
Description:
Writes the Serialnumber from the serial EEPROM into the ad-
dressed DLAG-Memory-Cell. The old value is automatically de-
leted
Input values: AH 78h DLAG Int15 function
AL E2h Function request
BX,
CX,
DX Serial Number
SI Password
Output value:
None, all registers are preserved