參數(shù)資料
型號: M30218MC-XXXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 81/161頁
文件大?。?/td> 2043K
代理商: M30218MC-XXXXFP
26
Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Protection
Protection
The protection function is provided so that the values in important registers cannot be changed in the event
that the program runs out of control. Figure WA-6 shows the protect register. The values in the processor
mode register 0 (address 000416), processor mode register 1 (address 000516), system clock control reg-
ister 0 (address 000616), and system clock control register 1 (address 000716) can only be changed when
the respective bit in the protect register is set to “1”.
The system clock control registers 0 and 1 write-enable bit (bit 0 at address 000A16) and processor mode
register 0 and 1 write-enable bit (bit 1 at address 000A16) do not automatically return to “0” after a value has
been written to an address. The program must therefore be written to return these bits to “0”.
Figure WA-6. Protect register
Protect register
SymbolAddressWhen reset
PRCR000A16
XXXXX0002
Bit name
Bit symbol
b7b6b5b4b3b2b1b0
0 : Write-inhibited
1 : Write-enabled
PRC1
PRC0
Enables writing to processor mode
registers 0 and 1 (addresses 000416
and 000516)
Function
0 : Write-inhibited
1 : Write-enabled
Enables writing to system clock
control registers 0 and 1 (addresses
000616 and 000716
)
W
R
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to
be indeterminate.
相關(guān)PDF資料
PDF描述
M30218MFCFP 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP100
M30220FCRP 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP144
M30220MA-XXXGP 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP144
M30220MA-XXXRP 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP144
M30220FCRP 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP144
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M3021E8F2-AXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M3021E8F4-AXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M3021E8F6-AXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M3021E8F8-AXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M3021E8FA-AXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER