參數(shù)資料
型號(hào): M37905M8C-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: 16 BIT CMOS MICROCOMPUTER
中文描述: 16位CMOS微機(jī)
文件頁(yè)數(shù): 74/102頁(yè)
文件大小: 881K
代理商: M37905M8C-XXXFP
74
M37905M4C-XXXFP, M37905M4C-XXXSP
M37905M6C-XXXFP, M37905M6C-XXXSP
M37905M8C-XXXFP, M37905M8C-XXXSP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
How to disable watchdog timer
When not using the watchdog timer, it can be disabled. When the
watchdog timer is disabled, it
s operation stops and no watchdog
timer interrupt has been generated.
Setting for disabling the watchdog timer is possible by writing
79
16
and
50
16
to the particular function select register 2 (address 64
16
)
sequentially with the following instructions:
MOVMB/STAB
instruction, or
MOVM/STA
instruction (m = 1)
If any method other than above has been adopted in order to access
(in other words, read/write) the particular function select register 2,
the watchdog timer will not be disabled until reset operation is per-
formed. (Also, reset is the only one method to remove the setting for
disabling the watchdog timer.)
Moreover, this setting for disabling the watchdog timer is ignored at
return from the STP mode, and the watchdog timer operates. (For
details, refer to the section on the standby function.)
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