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參數(shù)資料
| 型號： | μPD784214 |
| 廠商： | NEC Corp. |
| 英文描述： | 8/16 Bit Single Chip Microcontrollers(8/16 位單片微控制器) |
| 中文描述： | 8 / 16位單片機(jī)微控制器（8 / 16位單片微控制器） |
| 文件頁數(shù)： | 52/88頁 |
| 文件大?。?/td> | 427K |
| 代理商： | ΜPD784214 |
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μ
PD784214,784215,784216
52
10. STANDBY FUNCTION
This function is to reduce the power consumption of the chip, and can be used in the following modes:
HALT mode:
Stops supply of the operating clock to the CPU. This mode is used
in combination with the normal operation mode for intermittent operation
to reduce the average power consumption.
Stops the entire system with the oscillator continuing operation. The
power consumption in this mode is close to that in the STOP mode.
However, the time required to restore the normal program operation
from this mode is almost the same as that from the HALT mode.
Stops the main system clock and thereby to stop all the internal
operations of the chip. Consequently, the power consumption is
minimized with only leakage current flowing.
The main system clock is stopped with the subsystem clock used as
the system clock. The CPU can operate on the subsystem clock to
reduce the current consumption.
IDLE mode:
STOP mode:
Low power consumption mode:
Low power consumption HALT mode: This is a standby function in the low-power consumption mode and
stops the operation clock of the CPU, to reduce the power consumption
of the entire system.
Low power consumption IDLE mode:
This is a standby function in the low-power consumption mode and
stops the entire system except the oscillator, to reduce the power
consumption of the entire system.
These modes are programmable.
The macro service can be started from the HALT mode or low-power consumption HALT mode.
After macro service processing is executed, the system returnes to the HALT mode again.
The transition of the standby status is shown in Figure 10-1.
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