参数资料
型号: M38004E8SS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP64
封装: 0.750 INCH, 1.78 MM PITCH, WINDOWED, CERAMIC, SDIP-64
文件页数: 173/174页
文件大小: 1752K
代理商: M38004E8SS
APPLICATION
2.4 Processor mode
2-49
3800 GROUP USER’S MANUAL
2.4 Processor mode
2.4.1 Memory map of processor mode
Fig. 2.4.1 Memory map of processor mode related register
2.4.2 Related register
Fig. 2.4.2 Structure of CPU mode register
003B16
CPU mode register (CPUM)
!
3
2
0
1
CPU mode register (CPUM) [Adress : 3B16 ]
Nothing is allocated for these bits. These are write
disabled bits. When these bits are read out, the
values are “0.”
0
CPU mode register
Processor mode bits
00 : Single-chip mode
01 : Memory expansion mode
10 : Microprocessor mode
11 : Not available
Stack page selection
bit
0 : 0 page
1 : 1 page
0
!
T An initial value of bit 1 is determined by a level of the CNVSS pin.
T
At reset
B
Name
Function
RW
4
5
6
7
b7 b6 b5 b4 b3 b2 b1 b0
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