參數(shù)資料
型號： μPD789112
廠商： NEC Corp.
英文描述： 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述： 8位單片機微控制器（8位單片微控制器）
文件頁數(shù)： 24/48頁
文件大?。?/td> 221K
代理商： ΜPD789112
Preliminary Product Information
24
μ
PD789111, 789112, 789114
7. STANDBY FUNCTION
The standby function is a function to reduce current consumption and there are two kinds of standby function as
shown below.
HALT mode :
Stops the operating clock of the CPU. Intermittent operation together with normal operation
can reduce average current consumption.
Stops oscillation of the main system clock. Stops the entire operation by the main system
clock and minimizes power consumption.
STOP mode:
Figure 7-1. Standby Function
Main system clock operation
STOP mode
Oscillation of main
system clock stopped
HALT mode
Clock supply to CPU
is stopped, while
oscillation continues
(
(
(
(
STOP
instruction
HALT instruction
Interrupt
request
Interrupt
request
8. RESET FUNCTION
The system is reset in the following two ways.
External reset by RESET pin
Internal reset by detection of inadvertent program loop time of watchdog timer
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