ADE5566 datasheet(86/156 Pages) AD

86 / 156 page

ADE5166/ADE5169/ADE5566/ADE5569

Rev. B | Page 86 of 156

Code Indirect Addressing

The internal code memory can be accessed indirectly. This can be

useful for implementing lookup tables and other arrays of constants

that are stored in flash memory. For example, to move the data

stored in flash memory at Address 0x8002 into the accumulator,

MOV

DPTR,#8002h

CLR

MOVX

A,@A+DPTR

The accumulator can be used as a variable index into the array

of flash memory located at DPTR.

INSTRUCTION SET

Table 68 documents the number of clock cycles required for each instruction. Most instructions are executed in one or two clock cycles,

resulting in a 4-MIPS peak performance. Note that, throughout this section, A represents the accumulator.

Table 68. Instruction Set

Mnemonic

Description

Bytes

Cycles

Arithmetic

ADD A, Rn

Add register to A

ADD A, @Ri

Add indirect memory to A

ADD A, dir

Add direct byte to A

ADD A, #data

Add immediate to A

ADDC A, Rn 1 1

Add register to A with carry

ADDC A, @Ri

Add indirect memory to A with carry

ADDC A, dir

Add direct byte to A with carry

ADDC A, #data

Add immediate to A with carry

SUBB A, Rn

Subtract register from A with borrow

SUBB A, @Ri

Subtract indirect memory from A with borrow

SUBB A, dir

Subtract direct from A with borrow

SUBB A, #data

Subtract immediate from A with borrow

INC A

Increment A

INC Rn

Increment register

INC @Ri

Ri increment indirect memory

INC dir

Increment direct byte

INC DPTR

Increment data pointer

DEC A

Decrement A

DEC Rn

Decrement register

DEC @Ri

Decrement indirect memory

DEC dir

Decrement direct byte

MUL AB

Multiply A by B

DIV AB

Divide A by B

DA A

Decimal Adjust A

Logic

ANL A, Rn

AND register to A

ANL A, @Ri

AND indirect memory to A

ANL A, dir

AND direct byte to A

ANL A, #data

AND immediate to A

ANL dir, A

AND A to direct byte

ANL dir, #data

AND immediate data to direct byte

ORL A, Rn

OR register to A

ORL A, @Ri

OR indirect memory to A

ORL A, dir

OR direct byte to A

ORL A, #data

OR immediate to A

ORL dir, A

OR A to direct byte

ORL dir, #data

OR immediate data to direct byte

XRL A, Rn

Exclusive-OR register to A

XRL A, @Ri

Exclusive-OR indirect memory to A

XRL A, #data

Exclusive-OR immediate to A

XRL dir, A

Exclusive-OR A to direct byte

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