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參數(shù)資料
| 型號： | EM73492 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 4-Bit Micro-Controller for Telecom Product(用于通訊產(chǎn)品和家用電器，工作電壓為2.2V-5.5V的4位微控制器) |
| 中文描述： | 4位微控制器的電信產(chǎn)品（用于通訊產(chǎn)品和家用電器，工作電壓為2.2伏至5.5V的4位微控制器） |
| 文件頁數(shù)： | 6/44頁 |
| 文件大?。?/td> | 231K |
| 代理商： | EM73492 |
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6
EM73492
4-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
* This specification are subject to be changed without notice.
7.17.1998
12h;
18h;
2Ch;
09h;
01h;
5Ch;
00h;
08h;
DATA RAM ( 244-nibble )
There is total 244 - nibble data RAM from address 00 to F3h
Data RAM includes 3 parts: zero page region, stacks and data area.
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 y,b".
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:
Increment
Address
B0h - BFh
C0h - CFh
D0h - DFh
E0h - EFh
Level 0
Level 4
Level 8
Level 12
Level 1
Level 5
Level 9
Level 2
Level 6
Level 10
Level 3
Level 7
Level 11
I
Zero-page
00h - 0Fh
10h - 1Fh
F0h - F3h
:
:
:
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| EM73866 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
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| EM73962A | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICROCONTROLLER |
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| EM73982 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:4-BIT MICROCONTROLLER |
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