Philips P89LPC920 User Manual page 108

Philips Semiconductors
FLASH MEMORY
Table 15-4: IAP function calls
IAP function
Read Sector CRC
Read Global CRC
Read User Code
2003 Dec 8
IAP call parameters
Input parameters:
ACC = 05h
R7 = sector address
Return parameter(s):
R4 = CRC bits 31:24
R5 = CRC bits 23:16
R6 = CRC bits 15:8
R7 = CRC bits 7:0 (if no error)
R7 = error status (if error)
Carry = set on error, clear on no error
Input parameters:
ACC = 06h
Return parameter(s):
R4 = CRC bits 31:24
R5 = CRC bits 23:16
R6 = CRC bits 15:8
R7 = CRC bits 7:0 (if no error)
R7 = error status (if error)
Carry = set on error, clear on no error
Input parameters:
ACC = 07h
R4 = address (MSB)
R5 = address (LSB)
Return parameter(s):
R7 = data
108
User's Manual - Preliminary -
P89LPC920/921/922