MC80F0216K View Datasheet(PDF) - MagnaChip Semiconductor

Part Name

Description

MFG CO.

MC80F0216K

8-BIT SINGLE-CHIP MICROCONTROLLERS WITH 10-BIT A/D CONVERTER AND UART

MagnaChip Semiconductor 

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C535 LDA 35H

Preliminary

MC80F0208/16/24

;A ←RAM[35H]

983501 INC !0135H

;A ←ROM[135H]

35H

data

~~

0E550H

C5

0E551H

35

➋

~~ ➊ data → A

135H

data

~~

0F100H

98

0F101H

35

0F102H

01

➌

~~ ➋

data+1 → data

➊

address: 0135

8.4.4 Absolute Addressing → !abs

Absolute addressing sets corresponding memory data to Data, i.e.

second byte (Operand I) of command becomes lower level ad-

dress and third byte (Operand II) becomes upper level address.

With 3 bytes command, it is possible to access to whole memory

area.

ADC, AND, CMP, CMPX, CMPY, EOR, LDA, LDX, LDY, OR,

SBC, STA, STX, STY

Example;

0735F0 ADC !0F035H

;A ←ROM[0F035H]

0F035H

data

~~

0F100H

07

0F101H

35

0F102H

F0

➋

~~ ➊ A+data+C → A

address: 0F035

The operation within data memory (RAM)

ASL, BIT, DEC, INC, LSR, ROL, ROR

Example; Addressing accesses the address 0135H regardless of

G-flag.

8.4.5 Indexed Addressing

X indexed direct page (no offset) → {X}

In this mode, a address is specified by the X register.

ADC, AND, CMP, EOR, LDA, OR, SBC, STA, XMA

Example; X=15H, G=1

D4

LDA {X}

;ACC←RAM[X].

115H

data

~~

0E550H

D4

➋

~~

➊

data → A

X indexed direct page, auto increment→ {X}+

In this mode, a address is specified within direct page by the X

register and the content of X is increased by 1.

LDA, STA

Example; G=0, X=35H

DB

LDA {X}+

MAR. 2005 Ver 0.2

33

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