Fujitsu FR81S User Manual
CHAPTER 30: POWER CONSUMPTION CONTROL
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : POWER CONSUMPTION CONTROL
FUJITSU SEMICONDUCTOR CONFIDENTIAL
20
5.3. Sleep Mode
This section describes sleep mode.
Sleep mode is the mode in which CPU and on-chip bus are stopped and only the peripherals run. In sleep
mode, there are the following modes according to the difference in the range of functional blocks to be
stopped .
⋅
CPU sleep mode
: Only CPU is stopped.
⋅
Bus sleep mode
: Both CPU and on-chip bus are stopped.
The stop state continues until a wake up request occurs. It is possible to return to programmed operation
within a few clock times by generating a wake up request.
Operation of each mode are explained in the following sections
MB91520 Series
MN705-00010-1v0-E
1107