參數(shù)資料
型號(hào): M30201M4
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機(jī)
文件頁數(shù): 16/159頁
文件大?。?/td> 2319K
代理商: M30201M4
Unde
deeopmen
Bus Control
Software Reset
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
Software Reset
Writing “1” to bit 3 of the processor mode register 0 (address 0004
16
) applies a (software) reset to the
microcomputer. A software reset has almost the same effect as a hardware reset. The contents of internal
RAM are preserved.
Figure 1.14 shows the processor mode register 0 and 1.
Figure 1.14. Processor mode register 0 and 1.
Processor mode register 0 (Note)
Symbol
PM0
Address
0004
16
When reset
XXXX0000
2
Bit name
Function
Bit symbol
Reserved bit
W
R
b7 b6
b5
b4
b3
0
b2
0
b1 b0
0
PM03
Software reset bit
The device is reset when this bit
is set to “1”. The value of this bit
is “0” when read.
Note: Set bit 1 of the protect register (address 000A
16
) to “1” when writing new
values to this register.
Processor mode register 1 (Note)
Symbol
PM1
Address
0005
16
When reset
00XXXXX0
2
Bit name
Function
Bit symbol
W
R
b7
0
b6 b5
b4
b3
b2
b1
0
b0
0
Nothing is assigned.
When write, set "0". When read, their contents are indeterminate.
Reserved bit
Must always be set to “0”
Note: Set bit 1 of the protect register (address 000A
16
) to “1” when writing new values
to this register.
A
A
A
PM17
Wait bit
0 : No wait state
1 : Wait state inserted
A
Must always be set to “0”
Nothing is assigned.
When write, set "0". When read, their contents are indeterminate.
0
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