Reading, Programming tip ⎯ reading – Samsung S3C8275X User Manual
Page 294
S3F8275X
EMBEDDED FLASH MEMORY INTERFACE
16-11
READING
The read operation of programming starts by 'LDC' instruction.
The Reading Procedure in User Program Mode
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.
PROGRAMMING TIP
⎯ 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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