- Fix some bugs in the descriptions of DMA sync operations. - Tweak some text so it's less likely to confuse the reader.
- Fix some bugs in the descriptions of DMA sync operations.
- Tweak some text so it's less likely to confuse the reader.

OK'ed by:	scottl

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase