Nuvoton NuMicro MS51PC0AE - Page 262

MS51
Nov. 28, 2019 Page 262 of 491 Rev 1.00
MS51 32K SERIES TECHNICAL REFERENCE MANUAL
CALL Enable_AP_Update
CALL Erase_AP ;erase AP data
CALL Program_AP ;programming AP data
CALL Disable_AP_Update
CALL Program_AP_Verify ;verify Programmed AP data
CALL Read_CONFIG ;read back CONFIG2
CALL Enable_CONFIG_Update
CALL Erase_CONFIG ;erase CONFIG bytes
CALL Program_CONFIG ;programming CONFIG2 with new data
CALL Disable_CONFIG_Update
CALL Program_CONFIG_Verify ;verify Programmed CONFIG2
CALL Disable_IAP
MOV TA,#0Aah ;TA protection
MOV TA,#55h ;
ANL CHPCON,#11111101b ;BS = 0, reset to APROM
MOV TA,#0Aah
MOV TA,#55h
ORL CHPCON,#80h ;software reset and reboot from APROM
SJMP $
;********************************************************************
; IAP Subroutine
;********************************************************************
Enable_IAP:
MOV TA,#0Aah ;CHPCON is TA protected
MOV TA,#55h
ORL CHPCON,#00000001b ;IAPEN = 1, enable IAP mode
RET
Disable_IAP:
MOV TA,#0Aah
MOV TA,#55h
ANL CHPCON,#11111110b ;IAPEN = 0, disable IAP mode
RET
Enable_AP_Update:
MOV TA,#0Aah ;IAPUEN is TA protected
MOV TA,#55h
ORL IAPUEN,#00000001b ;APUEN = 1, enable APROM update
RET
Disable_AP_Update:
MOV TA,#0Aah
MOV TA,#55h
ANL IAPUEN,#11111110b ;APUEN = 0, disable APROM update
RET
Enable_CONFIG_Update:
MOV TA,#0Aah