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參數(shù)資料
| 型號： | MB90P678 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-Bit Proprietary Microcontroller(16位專用微控制器) |
| 中文描述： | 16位微控制器專利（16位專用微控制器） |
| 文件頁數(shù)： | 33/111頁 |
| 文件大?。?/td> | 736K |
| 代理商： | MB90P678 |
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33
MB90670/675 Series
Explanation of initial values
0: The initial value of this bit is “0”.
1: The initial value of this bit is “1”.
*: The initial value of this bit is either “1” or “0”. (The value is determined by the level of the MD0 to 2 pins.)
X: The initial value of this bit is undefined.
–: This bit is not used. No initial value is defined.
*1: Access prohibited.
*2: The only area available for the external access below address 0000FF
H
is this area. Accesses to these
addresses are handled as accesses to an external I/O area.
*3: Areas labelled “Vacancy” in the I/O map are reserved areas; accesses to these areas are handled accesses
to internal areas. No access signal is generated for the external bus.
*4: Only bit 15 can be read. Writes to other bits are used for testing. Reading any bit from bit 10 to 15 returns a “0”.
*5: P81 to P86, P90, P91, PA0 to PA7, and PB0 to PB2 do not exist in the MB90670 series. Therefore, the bits
corresponding to these pins are unused.
*6: The I
2
C bus interface is not included in the MB90670 series. Therefore, this area is treated as “Vacancy” in the
MB90670 series.
*7: Registers for which “R/W!” is indicated in the “Access” column contain some read-only or write-only bits. For
details, refer to the “Register configuration” for the resource in question.
Note: For write-only bits, the value to be initialized on reset is described as the initial value. Note that the value of
this bit is not the one for reading out.
In addition, the LPMCR, CKSCR, and WDTC may or may not be initialized, depending on the type of reset.
The value indicated is the initial value in those cases where the register is initialized.
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