Datasheet

V850ES/JG3 CHAPTER 21 STANDBY FUNCTION
R01UH0015EJ0300 Rev.3.00 Page 673 of 870
Sep 30, 2010
CHAPTER 21 STANDBY FUNCTION
21.1 Overview
The power consumption of the system can be effectively reduced by using the standby modes in combination and
selecting the appropriate mode for the application. The available standby modes are listed in Table 21-1.
Table 21-1. Standby Modes
Mode Functional Outline
HALT mode Mode in which only the operating clock of the CPU is stopped
IDLE1 mode Mode in which all the operations of the internal circuits except the oscillator, PLL
Note
, and flash
memory are stopped
IDLE2 mode Mode in which all the operations of internal circuits except the oscillator are stopped
STOP mode Mode in which all the operations of internal circuits except the subclock oscillator are stopped
Subclock operation mode Mode in which the subclock is used as the internal system clock
Sub-IDLE mode Mode in which all the operations of internal circuits except the oscillator are stopped, in the
subclock operation mode
Note The PLL holds the previous operating status.