MSP430构架：

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　Key features of the MSP430x1xx family include:
Ultralow-power architecture extends battery life
0.1-μA RAM retention
0.8-μA real-time clock mode
250-μA / MIPS active
High-performance analog ideal for precision measurement
12-bit or 10-bit ADC — 200 ksps, temperature sensor, VRef
12-bit dual-DAC
Comparator-gated timers for measuring resistive elements
Supply voltage supervisor
16-bit RISC CPU enables new applications at a fraction of the code size.
Large register file eliminates working file bottleneck
Compact core design reduces power consumption and cost
Optimized for modern high-level programming
Only 27 core instructions and seven addressing modes
Extensive vectored-interrupt capability
In-system programmable Flash permits flexible code changes, field
upgrades and data logging
1.2 Flexible Clock System
The clock system is designed specifically for

MSP430x1xx Family User guide.pdf