The external RAM of the 8051 microcontroller uses a 6116-EEWORLD

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Assume that the microcontroller uses 8051, the external ROM is not expanded, and the external RAM uses a 6116. Program the contents of the 10B of the internal ROM starting from the 0100H unit to the 10B of the external RAM starting from the 100H unit.
Solution: MOV R2, #00H; source data buffer address offset 00H A MOV R3, #0AH; byte length R3
MOV DPTR, #0100H; source data buffer first address DPTR
MOV A, R2; source address offset A
MOVC A, @A+DPTR; transfer a data
MOVX @DPTR, A

INC DPTR ; Source address (destination address) plus 1
DJNZ R3,L1 ; All data transmitted? Not yet, transfer to L1 to continue transmission

SJMP $ ; End

Keywords：MCU Reference address：The external RAM of the 8051 microcontroller uses a 6116

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