參數(shù)資料
型號: μPD705100
廠商: NEC Corp.
英文描述: 32 Bit Microprocessor(32 位微處理器)
中文描述: 32位微處理器(32位微處理器)
文件頁數(shù): 31/81頁
文件大?。?/td> 441K
代理商: ΜPD705100
31
CHAPTER 3 ADDRESS SPACE
The upper 1G-byte area (C0000000H-FFFFFFFFH) in the I/O space is reserved for internal I/O. To access
internal I/O, the IN.W/OUT.W instructions (in words) must be used. When the internal I/O area is accessed,
an external bus cycle is not activated.
Figure 3-4. Internal I/O Area
FFFFFFFFH
C0000000H
BFFFFFFFH
80000000H
7FFFFFFFH
40000000H
3FFFFFFFH
00000000H
FFFFFFFFH
FFFFFFFCH
FFFFFFFBH
FFFFFFF8H
FFFFFFF7H
FE001000H
FE000FFFH
FE000000H
FDFFFFFFH
FA001000H
FA000FFFH
FA000000H
F9FFFFFFH
F2001000H
F2000FFFH
F2000000H
Built-in periphery
External I/O area
(1G byte)
External I/O area
(1G byte)
External I/O area
(1G byte)
Internal I/O area
(1G byte)
Reserved
PLLCR
Reserved
IRAMR
Reserved
ICTR
Reserved
DCTR
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