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參數(shù)資料
| 型號： | EM73461A |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
| 中文描述： | 4位微控制器的液晶產(chǎn)品 |
| 文件頁數(shù)： | 5/33頁 |
| 文件大?。?/td> | 190K |
| 代理商： | EM73461A |
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* This specification are subject to be changed without notice.
EM73461A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
Increment
1.5.2001
LCD display RAM:
RAM address from 20h ~ 3Fh are the LCD display RAM area, the RAM data of this region can't be operated
by instruction LDHL xx and EXHL.
ZERO-PAGE:
From 00h to 0Fh is the location of zero-page. It is used as the pointer in zero-page addressing mode for the
instruction of "STD #k,y; ADD #k,y; CLR y,b; CMP k,y".
PROGRAM EXAMPLE: To wirte immediate data "07h" to address "03h" of RAM and to clear bit 2 of RAM.
STD #07h, 03h ; RAM[03]
←
07h
CLR 0Eh,2 ; RAM[0Eh]
2
←
0
STACK:
There are 13-level (maximum) stack for user using for subroutine (including interrupt and CALL). User can
assign any level be the starting stack by giving the level number to stack pointer (SP).
When user using any instruction of CALL or subroutine, before entry the subroutine, the previous PC address
will be saved into stack until return from those subroutines, the PC value will be restored by the data saved
in stack.
DATA AREA:
Except the special area used by user, the whole RAM can be used as data area for storing and loading general
data.
ADDRESSING MODE
(1) Indirect addressing mode:
Indirect addressing mode indicates the RAM address by specified HL register.
For example:
LDAM ; Acc
←
RAM[HL]
STAM ; RAM[HL]
←
Acc
(2) Direct addressing mode:
Direct addressing mode indicates the RAM address by immediate data.
level 0
level 4
level 8
level C
level 1
level 5
level 9
level 2
level 6
level A
level 3
level17
level B
B0h ~ BFh
C0h ~ CFh
D0h ~ DFh
E0h ~ EFh
F0h ~ F3h
Address
00h~0Fh
10h~1Fh
20h~2Fh
30h~3Fh
40h~4Fh
:
zero page
LCD display RAM
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| EM73461B | 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
| EM73461 | Single Chip CMOS 4-Bit Micro-Controller for LCD Product(用于LCD顯示的工作電壓1.2V-1.8V和2.4V-3.6V的單片4位微控制器) |
| EM73469A | 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
| EM73469 | Single Chip CMOS 4-Bit Micro-Controller for LCD Product(用于LCD顯示的工作電壓1.2V-1.8V的單片4位微控制器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM73461B | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
| EM73469A | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
| EM73866 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
| EM73880 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
| EM73962A | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICROCONTROLLER |
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