MSP430x11x

MIXED SIGNAL MICROCONTROLLERS

SLAS196D− DECEMBER 1998 − REVISED SEPTEMBER 2004

5

POST OFFICE BOX 655303

operating modes

The MSP430 has one active mode and five software selectable low-power modes of operation. An interrupt

event can wake up the device from any of the five low-power modes, service the request and restore back to

the low-power mode on return from the interrupt program.

The following six operating modes can be configured by software:

−

All clocks are active

−

CPU is disabled

ACLK and SMCLK remain active. MCLK is disabled

−

CPU is disabled

ACLK and SMCLK remain active. MCLK is disabled

DCO’s dc-generator is disabled if DCO not used in active mode

−

CPU is disabled

MCLK and SMCLK are disabled

DCO’s dc-generator remains enabled

ACLK remains active

−

CPU is disabled

MCLK and SMCLK are disabled

DCO’s dc-generator is disabled

ACLK remains active

−

CPU is disabled

ACLK is disabled

MCLK and SMCLK are disabled

DCO’s dc-generator is disabled

Crystal oscillator is stopped