Samsung C8274X User Manual

The read operation of programming starts by 'LDC' instruction. 

1.  Load a flash memory upper address into upper register of pair working register. 

2.  Load a flash memory lower address into lower register of pair working register. 

3.  Load receive data from flash memory location area on 'LDC' instruction by indirectly addressing mode. 

⎯ Reading 

 

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LD 

R2,#3H 

  ; Load flash memory upper address 

     

 

 

  ; To upper of pair working register 

 

LD 

R3,#0 

  ; Load flash memory lower address 

   

 

 

  ; To lower pair working register   

 

 

LOOP: 

LDC 

R0,@RR2 

  ; Read data from flash memory location   

 

 

 

  ; (Between 300H and 3FFH) 

 INC 

R3 

 

 CP 

R3,#0H 

 JP 

NZ,LOOP 

 
 

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