參數(shù)資料
型號: HMS87C1304A
廠商: Hynix Semiconductor Inc.
英文描述: CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
中文描述: CMOS單芯片8位微控制器
文件頁數(shù): 25/70頁
文件大?。?/td> 977K
代理商: HMS87C1304A
HYUNDAI MicroElectronics
HMS87C1304A/HMS87C1302A
Jan. 2001
Preliminary
25
8.4 Addressing Mode
The HMS87C1304A and HMS87C1302A uses six ad-
dressing modes;
Register addressing
Immediate addressing
Direct page addressing
Absolute addressing
Indexed addressing
Register-indirect addressing
(1) Register Addressing
Register addressing accesses the A, X, Y, C and PSW.
(2) Immediate Addressing
#imm
Preimnary
In this mode, second byte (operand) is accessed as a data
immediately.
Example:
0435
ADC
#35H
E45535
LDM
35H,#55H
(3) Direct Page Addressing
dp
In this mode, a address is specified within direct page.
Example;
C535
LDA
35H
;A
RAM[35H]
(4) Absolute Addressing
!abs
Absolute addressing sets corresponding memory data to
Data, i.e. second byte(Operand I) of command becomes
lower level address 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]
35
A+35H+C
A
04
MEMORY
E4
55
0F100
H
0F101
H
data
55H
~
~
data
0035
H
t
35
0F102
H
à
data
35
0035
H
0F551
H
data
A
à
t
~
~
C5
0F550
H
07
35
0F100
H
0F101
H
~
~
data
0F035
H
t
F0
0F102
H
à
A+data+C
A
address: 0F035
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