RP2040 Datasheet Pg 417 Figure 59 UART Block Diagram (copy/paste error)

[drankinatty]

In the RP2040 Datasheet Page 417 in Figure 59 in the DMA Interface (bottom-left of figure) the first UARTTXDMABREQ should be the Receive Burst Request UARTRXDMABREQ. If you look at the figure there are two UARTTXDMABREQ shown leaving the DMA Interface block and no UARTRXDMABREQ.

The bottom UARTTXDMABREQ is correct, but the UARTTXDMABREQ (2nd up from the bottom) should be UARTRXDMABREQ. (it just looks like something got copied and was intended to be changed, but then life intervened and was missed)

(this is low-priority, but as I find issues, I'll go ahead and report them so they can be fixed as time permits -- or if I learn how the documentation works I'll make a pull-request)

[lurch]

If you look at the figure there are two UARTTXDMABREQ shown leaving the DMA Interface block and no UARTRXDMABREQ.

Indeed, well spotted :mag:

but as I find issues, I'll go ahead and report them so they can be fixed as time permits

Thanks! Issues with the RP2040 / Pico documentation should be filed at https://github.com/raspberrypi/pico-feedback/issues

or if I learn how the documentation works I'll make a pull-request

The source for https://www.raspberrypi.com/documentation is available at https://github.com/raspberrypi/documentation/tree/develop/documentation/asciidoc (and PRs are indeed welcome), whereas the source for the RP2040 & Pico PDFs isn't publicly available (but please feel free to file issues, and we'll fix them as time permits).