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參數(shù)資料
| 型號： | MB91F155PFV-G |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 33 MHz, RISC MICROCONTROLLER, PQFP144 |
| 封裝： | PLASTIC, LQFP-144 |
| 文件頁數(shù)： | 22/103頁 |
| 文件大?。?/td> | 866K |
| 代理商： | MB91F155PFV-G |
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MB91F155/MB91154
25
[Precautions When Writing to the MODR]
Before writing to the MODR, be sure to set AMD0 through 5 and determine the bus width in each CS (Chip
Select) area.
The MODR does not have bus width setting bits.
The bus width value set with mode pins MD2 through 0 is enabled before writing to the MODR and the bus width
value set with BW1 and 0 of AMD0 through 5 is enabled after writing to the MODR.
For example, the external reset vector is normally executed with area 0 (the area where CS0 is active) and the
bus width at that time is determined by pins MD 2 through 0. Suppose that the bus width is set to 32 or 16 bits
in MD2 though 0 but no value is specified in AMD 0. If the MODR is written in this state, area 0 then switches
to 8-bit bus mode and operates the bus since the initial bus width in AMD0 is set to 8 bits. This causes a
malfunction.
In order to prevent this type of problem, AMD0 through 5 must always be set before writing to the MODR.
Writing to the MODR.
AMD0 to AMD5 BW1, 0
Designated bus width : MD2,1,0
RST (Reset)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB91F158 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
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| MB91F191A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontroller |
| MB91F191APFF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontroller |
| MB91F192 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontroller |
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