SAB80515 Datasheet, PDF (179/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

Instruction Set
MOV
DPTR, #data16
Function:
Load data pointer with a 16-bit constant
Description:
The data pointer is loaded with the 16-bit constant indicated. The 16 bit constant is
loaded into the second and third bytes of the instruction. The second byte (DPH) is
the high-order byte, while the third byte (DPL) holds the low-order byte. No flags are
affected.
This is the only instruction which moves 16 bits of data at once.
Example:
The instruction
Operation:
MOV DPTR, #1234H
will load the value 1234H into the data pointer: DPH will hold 12H and DPL will hold
34H.
MOV
(DPTR) ← #data15-0
DPH DPL ← #data15-8
#data7-0
Encoding:
Bytes:
Cycles:
1001 0000
3
2
immed. data 15 . . . 8
immed. data 7 . . . 0
Semiconductor Group
179