Renesas SH7781 用户手册

17.   Power-Down Mode 

Rev.1.00  Jan. 10, 2008  Page 781 of 1658 

REJ09B0261-0100 

 

Section 17   Power-Down Mode 

In power-down mode, some of the on-chip modules and the CPU are stopped. This enables to 
reduce power consumption. 

•  Supports sleep mode, deep sleep mode, and module standby mode 
•  Supports DDR2-SDRAM power supply backup mode that turns off the power supplies the 1.8-

V power supply 

 

Power-down modes have the following modes and functions. 

•  Sleep mode 
•  Deep sleep mode 
•  Module standby function 
•  DDR-SDRAM power supply backup 

 

Table 17.1 shows the conditions of transition to each mode, the states of the CPU, on-chip 
modules, etc. in each mode, and the methods for releasing each mode.