What are the four MSP430 timer modes of operation?

What are the four MSP430 timer modes of operation?

Timer_A supports 4 modes of operation:

• Stop Mode: In this mode the Timer is Halted.
• Up Mode: Timer repeatedly counts from Zero to value stored in Capture/Compare Register 0 (TACCR0).
• Continuous: Timer repeatedly counts from Zero to 0xFFFF, which is maximum value for 16-bit TAR.

What are timer control registers used in Timer_A?

Timer_A is a 16-bit timer/counter with up to seven capture/compare registers. Timer_A can support multiple capture/compares, PWM outputs, and interval timing. Timer_A also has extensive interrupt capabilities.

What is capture mode in MSP430?

Capture mode is used to record time events. It can be used for speed computations or time measurements. The capture inputs CCIxA and CCIxB are connected to external pins or internal signals and are selected with the CCIS bits. The CM bits select the capture edge of the input signal as rising, falling, or both.

What is basic timer in MSP430?

MSP430 series chips have two types of Timers known as Timer_A and Timer_B. Timer A is a 16 bit Timer/Counter with 3 capture compare registers. Block Diagram. Block Diagram of Timer_A simplified. The Timer can be clocked either by SMCLK, ACLK,TACLK or INCLK.

What is watchdog timer in MSP430?

Watch Dog Timer (WDT+) of MSP430. It is basically a hardware timer which counts up and resets the controller after the specified time has passed. During normal operation,the running program has to periodically clear the counter so that it doesnt reset the microcontroller .

What is MSP430 timer?

What is timer in microcontroller MSP430?

MSP430 series chips have two types of Timers known as Timer_A and Timer_B. Both of them are 16 bit timers with several capture compare channels and selectable clock sources. Timer_B is slightly complex than Timer_A and offers more extensive interrupt capabilities and capture compare channels.

Which bit in SR register that allows the MSP430 operate in low power modes?

SCG1 bit
Explanation: The CPU off bit, OSC off bit, SCG0 bit, SCG1 bit of the status register are used to allow the microcontroller to operate in its low power mode.

What is tar and taccrx in MSP430?

MSP430 Timer Registers 1) TAR– Timer Counter Register:Holds the current count for Timer_A. 2) TACCRx– Timer Capture/Compare Register:In Compare mode, it holds compare value to be compared against TAR. In Capture mode, it holds the current value of TAR when a capture is performed.

What are the interrupts on the MSP430?

The interrupts come in handy when you want your microcontroller to do a task based on external circuitry’s response. Every controller has an interrupt handling procedure so that it can encounter multiple sources/interrupts. The process for the MSP430 is also similar and is as follows:

What are the timers in MSP430?

MSP430 Timer Examples A simple Delay function using Interrupt Blinky using MSP430 Timer Interrupt Introduction MSP430G2553 has two Timer_As viz. Timer0_A3and Timer1_A3which features 3 capture/compare registers while MSP430G2231 has only 1 timer called Timer0_A2with only 2 capture/compare registers.

How to enable global interrupt in taccr0?

Select Clock Source, Input Clock divider and Timer mode using TASSELx, IDx, MCxfields respectively. Enable global Interrupts and we are done. Note that TACCR0 has dedicated interrupt vector. Other TACCRx have common interrupt vector(see TAIVx and section 12.2.6 on page 367 in User Manual).