Abov MC97F6108A User Manual

17. Power down operation MC97F6108A User’s manual
184
17 Power down operation
MC97F6108A has three power-down modes to minimize the power consumption of the device. In power
down mode, power consumption is reduced considerably. MC97F6108A provides three kinds of power
saving functions such as IDLE mode, STOP1 mode and STOP2 mode. During one of these three modes,
program will be stopped. To go to STOP1 mode, WDTRC should be set by writing '1' to WDTRCON bit
in SCCR register.
17.1 Peripheral operation in IDLE/ STOP mode
Table 25 shows operation status of each peripheral in IDLE mode and STOP mode.
Table 25. Peripheral Operation Status during Power Down Mode
Peripheral
IDLE mode
STOP1 mode
STOP2 mode
CPU
ALL CPU operations are
disabled.
ALL CPU operations are
disabled.
ALL CPU operations are
disabled.
RAM
Retains.
Retains.
Retains.
Basic Interval Timer
Operates continuously.
Operates continuously
(can be operated with
WDTRC OSC)
Stops
Watchdog Timer
Operates continuously.
Operates continuously
(can be operated with
WDTRC OSC)
Stops
Timer0~3
Operates continuously.
Halts (only when the
event counter mode is
enabled, timer operates
normally).
Halts (only when the
event counter mode is
enabled, timer operates
normally).
I2C
Operates continuously.
Stops.
Stops.
Internal OSC (16MHz)
Oscillates.
Stops.
Stops.
Internal WDTRC OSC
(8kHz)
Oscillates.
Oscillates.
Stops.
I/O Port
Retains.
Retains.
Retains.
Control Register
Retains.
Retains.
Retains.
Address Data Bus
Retains.
Retains.
Retains.
Release Method
By RESET, all Interrupts
By RESET, USART by
RX, SPI (External clock),
External Interrupt (with
PCI), WDT, BIT, BOD,
TIMER(EC0, EC1)
By RESET, USART by
RX, SPI (External clock),
External Interrupt (with
PCI), BOD TIMER(EC0,
EC1)

Abov MC97F6108A Specifications

General

Brand	Abov
Model	MC97F6108A
Category	Microcontrollers
Language	English