參數(shù)資料
型號: HD404326
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-series microcomputer(4位單片微計算機(jī))
中文描述: 4位HMCS400系列微電腦(4位單片微計算機(jī))
文件頁數(shù): 35/94頁
文件大?。?/td> 573K
代理商: HD404326
HD404328 Series
35
Low-power mode
operation cycle
IF = 1, IM = 0
No
Yes
No
Yes
Standby/watch mode
Stop mode
IF = 1, IM = 0
Hardware NOP
execution
Instruction execution
PC next location
PC next location
Hardware NOP
execution
MCU operation
cycle
For IF and IM operation,
refer to figure 11.
Figure 18 MCU Operating Sequence (Low-Power Mode Operation)
Limitation on Use
In subactive mode, the timer A interrupt request or the external interrupt request (
INT
0
) occurs in
synchronism with the interrupt strobe. If the STOP or SBY instruction is executed at the same time
with the interrupt strobe, these interrupt requests will be cancelled and its corresponding interrupt
request flags (IFTA, IF0) will be not set.
In subactive mode, do not use the STOP or SBY instruction at the time of the interrupt strobe.
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