HMS81016E 데이터 시트보기 (PDF) - Hynix Semiconductor

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HMS81016E

8-BIT SINGLE-CHIP MICROCONTROLLERS

Hynix Semiconductor 

HMS81004E/08E/16E/24E/32E

Y indexed direct page (8 bit offset) → dp+Y

This address value is the second byte (Operand) of com-

mand plus the data of Y-register, which assigns Memory in

Direct page.

This is same with above (2). Use Y register instead of X.

Y indexed absolute → !abs+Y

Sets the value of 16-bit absolute address plus Y-register

data as Memory. This addressing mode can specify mem-

ory in whole area.

Example; Y=55H

D500FA LDA !0FA00H+Y

3F35 JMP [35H]

35H

36H

~~

0E30AH

~~

0FA00H

0A

E3

NEXT

3F

35

~~ — jump to address 0E30AH

–

~~

0F100H

D5

0F101H

00

0F102H

FA

~~

0FA55H

data

–

0FA00H+55H=0FA55H

~~

—

data → A

˜

(6) Indirect Addressing

Direct page indirect → [dp]

Assigns data address to use for accomplishing command

which sets memory data(or pair memory) by Operand.

Also index can be used with Index register X,Y.

JMP, CALL

Example; G=0

X indexed indirect → [dp+X]

Processes memory data as Data, assigned by 16-bit pair

memory which is determined by pair data

[dp+X+1][dp+X] Operand plusX-register data in Direct

page.

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

Example; G=0, X=10H

1625 ADC [25H+X]

35H

05

36H

E0

~~

0E005H

data

~~

0FA00H

16

25

~~ — 0E005H

– 25 + X(10) = 35H

~~

˜ A + data + C → A

28

JUNE 2001 Ver 1.00

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