參數(shù)資料
型號: M388504E6SS
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 10/51頁
文件大小: 736K
代理商: M388504E6SS
10
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
[CPU Mode Register (CPUM)] 003B
16
The CPU mode register contains the stack page selection bit, etc.
The CPU mode register is allocated at address 003B
16
.
Fig. 7 Structure of CPU mode register
CPU mode register
(
CPUM : address
003B
16
)
b7
b0
Stack page selection bit
0 : 0 page
1 : 1 page
Fix this bit to “1”.
Processor mode bits
b1 b0
0 0 : Single-chip mode
0 1 :
1 0 :
Not available
1 1 :
Port X
C
switch bit
0 : I/O port function (stop oscillating)
1 : X
CIN
–X
COUT
oscillating function
Main clock (X
IN
–X
OUT
) stop bit
0 : Oscillating
1 : Stopped
Main clock division ratio selection bits
b7 b6
0 0 :
φ
= f(X
IN
)/2 (high-speed mode)
0 1 :
φ
= f(X
IN
)/8 (middle-speed mode)
1 0 :
φ
= f(X
CIN
)/2 (low-speed mode)
1 1 : Not available
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