R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 709

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

This LSI has power consumption reduction functions, such as multi-clock function, module stop
function, and transition function to power-down mode.
19.1
• Multi-clock function
• Module stop function
• Transition function to power-down mode
• Three power-down modes
Table 19.1 shows conditions for making a transition to a power-down mode, states of the CPU and
peripheral modules, and clearing method for each mode. After the reset state, since this LSI
operates in normal program execution state, the modules, other than the DMAC are stopped.
Table 19.1 Operating States
Operating State Sleep Mode
Transition
condition
Cancellation
method
Oscillator
CPU
Watchdog timer Functions
Other peripheral
modules
The frequency division ratio is settable independently for the system clock, peripheral module
clock, and external bus clock.
The functions for each peripheral modules can be stopped to make a transition to a power-
down mode.
Transition to a power-down mode is possible to stop the CPU, all the on-chip peripheral
modules, and oscillator.
Sleep mode
All-module-clock-stop mode
Software standby mode
Features
Control register +
instruction
Interrupt
Functions
Halted (retained)
Functions
Section 19 Power-Down Modes
Control register + instruction
Interrupt*
Functions
Halted (retained)
Functions
Halted*
All-Module-Clock-Stop Mode Software Standby Mode
3
2
Rev. 3.00 Mar. 14, 2006 Page 671 of 804
Control register + instruction
External interrupt
Halted
Halted (retained)
Halted (retained)
Halted*
Section 19 Power-Down Modes
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REJ09B0104-0300