S32K中的主题 S32k flexIO shifter match store mode

S32k flexIO shifter match store mode

yuegao1996 — Tue, 31 Aug 2021 20:44:08 GMT

Hi,

in match store mode, the manual says higher 16 bits are used to set the data to be matched and the lower to mask the results. Since the shifter is 32bit, so how does it be compared to SHIFTBUF[31:16], and how data is received when a match occurs?

Re: S32k flexIO shifter match store mode

Senlent — Wed, 01 Sep 2021 02:51:21 GMT

Hi@yuegao1996

You can refer to the process in the figure below.

Senlent_0-1630464166985.png

BR!

Jim,

Re: S32k flexIO shifter match store mode

yuegao1996 — Wed, 01 Sep 2021 05:31:22 GMT

Hi Jim,

does this mean that as far as the higher 16 bits matched, then the whole 32 bit data in the shifter will be loaded to the shiftbuf?

many thanks,

Yuri

Re: S32k flexIO shifter match store mode

Senlent — Wed, 01 Sep 2021 06:22:48 GMT

Hi@yuegao1996

yes, I think it should be like this.

The step"n+2" says: "when match occur store shifter data into the buffer, and set some flag bit".