CSEG    AT 7000h
; ERASE BLOCK
ORL AUXR1,#00100000	; ENBOOT bit determines whether the BOOTROM is enabled
or disabled
MOV R0,#11	; R0 = osc freq (integer)
MOV R1,#01h
MOV DPH,#0	;block code, block 0, 0k to 8k, 00H
MOV DPL,#0
LCALL PGM_MTP	; 0FFF0h
; It never returne here!?
; With R1 = 81h (WDT feed), it return here but the WDT is enable.