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參數(shù)資料
| 型號： | MSM64172-XXX |
| 廠商： | LAPIS SEMICONDUCTOR CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 0.6 MHz, MICROCONTROLLER, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 29/30頁 |
| 文件大小： | 239K |
| 代理商： | MSM64172-XXX |
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Semiconductor
MSM64172
Data Memory
The data memory area consists of 8 banks and each bank has 256 nibbles (256 4 bits).
The data RAM is assigned to BANK 7 and peripheral ports are assigned to BANK 0.
7FFH
BANK 7
Data RAM area
4 bits
780H
0FFH
080H
07FH
000H
Unused area
BANK 0
Data/Stack area (128 nibbles)
Contents of 000H to 07FH
SFR area
07FH
000H
Inaccessible area
Unused area
77FH
700H
Data Memory Map
The data RAM area (128 nibbles) is shared by the stack area. The stack is a memory starting from
address 7FFH toward the low-order addresses where 4 nibbles are used by Subroutine Call
Instruction and 8 nibbles are used by an interrupt.
The addresses 080H to 0FFH of BANK 0 and the addresses 700H to 77FH of BANK 7 are not
assigned as the data memory, so access to these addresses has no effect. Moreover, it is
impossible to access BANK 1 to BANK 6.
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相關(guān)代理商/技術(shù)參數(shù) |
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| MSM6422 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:High speed and Simple 4-Bit Microcontroller |
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| MSM64422 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Built-in 256/512-Bit EEPROM and LCD Driver 4-Bit Microcontroller |
| MSM64422-XXXMS-K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Built-in 256/512-Bit EEPROM and LCD Driver 4-Bit Microcontroller |
| MSM64424 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Built-in 256/512-Bit EEPROM and LCD Driver 4-Bit Microcontroller |
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