What is the default frequency of DCO in MSP430G2553?
The DCO is digitally controlled because its frequency be changed from several hundred kHz up to 25MHz. The MSP430 can also use external crystals with internal oscillator circuitry to generate both low frequency (32kHz) and high frequency (Up to 25MHz) clocks that are as accurate as the crystal used.
How many clocks does the MSP430G2553 microcontroller have?
As can be seen in this figure, the MSP430G2553 has a 16-MHz CPU.
What is Mclk in MSP430?
The master clock (MCLK) is derived from any of the four oscillators, and it drives the cpu. The sub-main clock (SMCLK) is derived from any of the four oscillators, and it drives peripherals. The auxiliary clock (ACLK) is derived from either VLOCLK or LFXT1CLK, and it drives peripherals.
Is the default source to generate Mclk?
By default, MCLK (which drives the CPU and the DMA) and SMCLK (used for peripherals, usually synchronous to MCLK) are driven by the internal digitally controlled RC-oscillator (DCO).
In which mode is Mclk and Smclk disabled?
MSP430 has 5 low power modes named as LPM0 to LPM4 . The table below shows which clocks are active and which are disabled in various low power modes. LPM0 – Both CPU and MCLK are disabled. SMCLK and ACLK remain active.
What is Aclk and Smclk?
SMCLK is usually a high frequency clock and it is used for peripheral modules (e.g. Timers, serial communication modules.) ACLK is usually a 32kHz crystal clock. It is used for peripheral modules that require a low-frequency clock (e.g. real-time-clock.)
What is the resolution of the ADC10 module of msp430g2553 how many simultaneous analog channels can be interfaced with the ADC10?
8 analog channels
The ADC10 of MSP430G2xxx3 comes with 8 analog channels which can be used for interfacing external sensors and two internal one (one for Internal temperature sensor and the other for measuring Vcc-Vss/2 ).
How many segments of information memory are present in msp430g2553?
The information memory is divided into two 128-byte segments.
How many low power modes are available on msp430g2553 microcontroller?
5 low power modes
MSP430 has 5 low power modes named as LPM0 to LPM4 .
Which of the following modes is also known as the RAM retention mode?
LPM4
3. Which of the following modes is also known as the RAM retention mode? Explanation: LPM4 is known as the RAM retention mode.
Does the msp430g2553 have an xt2clk or lfxt1clk?
The MSP430G2553 does not have an XT2CLK nor does it support the high frequency oscillator mode on LFXT1CLK. These clock sources can be configured to drive the three internal clock signals: ACLK: The auxiliary clock, also used for peripherals
What clock sources can be used with the MSP430?
The MSP430 clock module can have up to four clock sources: VLOCLK: Internal very low frequency oscillator (~12kHz) LFXT1CLK: Low or high frequency oscillator can be used with an external low frequency crystal (i.e. 32768Hz for a clock) or at high frequency requiring an external crystal, resonator or clock source in the range of 400kHz – 16MHz
How does the MSP430 digital oscillator work?
The DCO is digitally controlled because its frequency be changed from several hundred kHz up to 25MHz. The MSP430 can also use external crystals with internal oscillator circuitry to generate both low frequency (32kHz) and high frequency (Up to 25MHz) clocks that are as accurate as the crystal used.
What is the working mode of msp430g2553?
MSP430G2553 is a typical low-power system CPU working mode. The system is idle most of the time, and some tasks will be processed only when an event occurs or timing. The power consumption of the entire system is equal to the area under the average curve.