MSP430 IO and internal structure diagram

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MSP430 IO and internal structure diagram [Copy link]

MSP has 7 addressing modes, and the addressing modes are similar to those of ARM, so the modes are similar. These low-level things can only be used by writing in assembly statements.

MSP430 pin distribution: 6 groups of I/O ports, 8 in each group

Internal resources of MSP430:

Three clock sources: ACLK() auxiliary clock, SMCLK() subsystem clock, and MCLK() main clock

MSP digital signal processor: The CPU clock runs very fast, and the internal hardware multiplier is integrated to solve the problem of consuming a large number of machine cycles when performing multiplication and division.

16 external interrupts: 51 only provides 2 external interrupts, but the MSP430 interrupt does not support level interrupts