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TMS570LS1227 is 16 bit or 32 bit microcontroller?

Yang ShunFan
Intellectual 570 points
Other Parts Discussed in Thread: TMS570LS1227

Dear TI,

I have a confuse for datasheet of TMS5701227.

It describe that TMS570LS1227 16- and 32-Bit RISC Flash Microcontroller at first page.

I can't understand this meaning.

As my know, TMS570 has two CPU. The other one is used for "lockstep."

Could you explain what is 16- and 32- bit ?

 

Best Regards,

Fan

  • 0
    TI__Mastermind 23000 points
    Hello,
    ARM describes the CPU as a 32b CPU which also supports 16b instructions for better code density (memory savings).

    The instruction set supported by the ARM Cortex R4/R4F CPU has a pure 32b operating mode (ARM) and a mixed 16/32b operating mode (Thumb-2). Depending on what mode you write your software for, you will be using a mix of 16b and 32b instructions. All addressing is 32b regardless of instruction set mode.

    Regards,
    Karl