參數資料
型號: HD404618H
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機
文件頁數: 33/89頁
文件大?。?/td> 358K
代理商: HD404618H
HD404618 Series
33
Low-power mode
operation cycle
IF = 1
IM = 0
Hardware NOP
execution
PC next
Iocation
MCU operation
cycle
Standby/watch
mode
IF = 1
IM = 0
Hardware NOP
execution
PC next
Iocation
Instruction
execution
Stop mode
No
Yes
No
Yes
For IF and IM operation, refer to figure 12.
Figure 18 MCU Operating Sequence (low-power mode operation)
Notes 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 the corresponding interrupt request flags (IFTA, IF0) will not be set.
In subactive mode, do not use the STOP or SBY instruction at the time of the interrupt strobe.
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