參數(shù)資料
型號(hào)： MB91151APMC-G
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： RISC MICROCONTROLLER, PQFP144
封裝： 20 X 20 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LFQFP-144
文件頁(yè)數(shù)： 16/96頁(yè)
文件大?。?/td> 2300K
代理商： MB91151APMC-G
MB91151A Series
DS07-16312-2E
23
[Precautions When Writing to the MODR]
Before writing to the MODR, be sure to set AMD0 through AMD5 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 MD0 is enabled before writing to the MODR and the bus
width value set with BW1 and BW0 of AMD0 through AMD5 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 MD2 through MD0. Suppose that the bus width is set to 32 or 16
bits in MD2 though MD0 but no value is specified in AMD0. 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 AMD5 must always be set before writing to the MODR.
Writing to the MODR.
AMD0 to AMD5 BW1, BW0
Designated bus width : MD2,MD1,MD0
RST (Reset)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB91151APMT2-G 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers
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MB91154PFV-G-XXX 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers
MB91155 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers
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