PD780701Y_15 Datasheet, PDF (42/66 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD780701Y, 780702Y
6. STANDBY FUNCTION
The following two standby functions are available for further reduction of system current consumption.
• HALT mode: In this mode, the CPU operation clock is stopped. The average current consumption can be
reduced by intermittent operation by combining this mode with the normal operation mode.
• STOP mode: In this mode, oscillation of the system clock is stopped. All the operations performed on the
system clock are suspended, resulting in extremely small current consumption.
Figure 6-1. Standby Function
Interrupt
request
STOP mode
(System clock oscillation stopped)
System clock operation
STOP instruction
HALT instruction
Interrupt
request
HALT mode
(Clock supply to CPU halted,
oscillation maintained)
7. RESET FUNCTION
The following two reset methods are available.
• External reset by RESET signal input
• Internal reset by watchdog timer runaway time detection
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Preliminary Product Information U13920EJ1V0PM00