GMS81C7008 datasheet(32/123 Pages) HYNIX

部件名	GMS81C7008

功能描述	HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS

PDF	123 Pages

Scroll/Zoom	100%

制造商	HYNIX [Hynix Semiconductor]

网页	http://www.skhynix.com/kor/main.do

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GMS81C7008/7016

APR., 2001 Ver 2.01

8.5 Addressing Mode

The GMS800 series MCU uses six addressing modes;

• Register addressing

• Immediate addressing

• Direct page addressing

• Absolute addressing

• Indexed addressing

• Register-indirect addressing

(1) Register Addressing

(2) Immediate Addressing

→

→ #imm

In this mode, second byte (operand) is accessed as a data imme-

diately.

Example:

0435

ADC

#35H

When G-flag is 1, then RAM address is defined by 16-bit address

which is composed of 8-bit RAM paging register (RPR) and 8-bit

immediate data.

Example: G=1, RPR=01

E45535

LDM

35H,#55H

(3) Direct Page Addressing

→

→ dp

In this mode, a address is specified within direct page.

Example; G=0

C535

LDA

35H

←RAM[35H]

A+35H+C

→ A

MEMORY

0F100H

data

← 55H

data

0135H

0F102H

0F101H

data

35H

0E551H

data

→ A

0E550H

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