MSP430 Peripherals
device in your system.) The 'F5529 also contains a sophisticated power supervisor to warn (i.e.
interrupt) your system when the power is getting close to out-of-spec.
Power gating is another feature found on most of the MSP430 devices. The basic idea is that we
want to power-down anything that is not needed.
Analog
Bringing high-quality analog components on-chip was a big selling point of the original MSP430
devices - and still is today. Besides providing high-quality analog, they've done it with a low-
power footprint, too.
MSP430 analog peripherals cover a wide range of needs. At one end, you'll find most every
device contains one or more analog comparators. These signal the processor when an analog
input crosses a boundary. (Comparators are often used to build a "poor mans" analog to digital
converter.)
In many systems, though, you will want an actual ADC (analog to digital) converter. The MSP430
family provides a wide variety of options. In fact, some designers select their specific MSP430
device based upon which type of converter they want to use.
Almost regardless of the type of analog component, they have a few key features in common.
The ability to generate interrupts is fundamental. Also critical are the ability to trigger conversions
based on timers; and couple that with using DMA's to transfer the results to memory sans CPU.
MSP430 Workshop - Introduction to MSP430 1 - 25
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