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docs/DSP: Improve DMA hardware register information

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Pokechu22 2021-08-10 14:20:33 -07:00
parent b99fbf7e9c
commit 9a269929ec
1 changed files with 9 additions and 7 deletions
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16
docs/DSP/GameCube_DSP_Users_Manual/GameCube_DSP_Users_Manual.tex
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@ -618,7 +618,7 @@ Hardware registers occupy the address space at \Address{0xFFxx} in DSP memory sp
\textbf{Address} & \textbf{Name} & \textbf{Description} \\ \hline
\multicolumn{3}{|l|}{\textit{DMA Interface}} \\ \hline
\Address{0xFFC9} & \Register{DSCR} & DMA control \\ \hline
\Address{0xFFCB} & \Register{DSBL} & Block size \\ \hline
\Address{0xFFCB} & \Register{DSBL} & Block length \\ \hline
\Address{0xFFCD} & \Register{DSPA} & DSP memory address \\ \hline
\Address{0xFFCE} & \Register{DSMAH} & Memory address H \\ \hline
\Address{0xFFCF} & \Register{DSMAL} & Memory address L \\ \hline
@ -646,13 +646,15 @@ Hardware registers occupy the address space at \Address{0xFFxx} in DSP memory sp
The GameCube DSP is connected to the memory bus through a DMA channel. DMA can be used to transfer data between DSP memory (both instruction and data) and main memory.
\RegisterBitOverview{0xFFC9}{DSCR}{DSP Address}{---- ---- ---- ----}
\RegisterBitOverview{0xFFC9}{DSCR}{DMA Control}{---- ---- ---- -tid}
\begin{RegisterBitDescriptions}
\RegisterBitDescription{15--0}{d}{W}{}
\RegisterBitDescription{2}{t}{R}{Transfer currently in progress if set}
\RegisterBitDescription{1}{i}{R/W}{\begin{tabular}[c]{@{}l@{}}\Value{1} - DMA to/from IMEM\\ \Value{0} - DMA to/from DMEM\end{tabular}}
\RegisterBitDescription{0}{d}{R/W}{\begin{tabular}[c]{@{}l@{}}\Value{1} - DMA to CPU from DSP\\ \Value{0} - DMA from CPU to DSP\end{tabular}}
\end{RegisterBitDescriptions}
\RegisterBitOverview{0xFFCB}{DSBL}{DSP Address}{dddd dddd dddd dddd}
\RegisterBitOverview{0xFFCB}{DSBL}{Block length}{dddd dddd dddd dddd}
\begin{RegisterBitDescriptions}
\RegisterBitDescription{15--0}{d}{W}{Length in bytes to transfer. Writing to this register starts a DMA transfer.}
@ -661,19 +663,19 @@ The GameCube DSP is connected to the memory bus through a DMA channel. DMA can b
\RegisterBitOverview{0xFFCD}{DSPA}{DSP Address}{dddd dddd dddd dddd}
\begin{RegisterBitDescriptions}
\RegisterBitDescription{15--0}{d}{W}{Bits 15--0 of the DSP memory address}
\RegisterBitDescription{15--0}{d}{R/W}{Bits 15--0 of the DSP memory address}
\end{RegisterBitDescriptions}
\RegisterBitOverview{0xFFCE}{DSMAH}{Memory Address H}{dddd dddd dddd dddd}
\begin{RegisterBitDescriptions}
\RegisterBitDescription{15--0}{d}{R}{Bits 31--16 of the main memory address}
\RegisterBitDescription{15--0}{d}{R/W}{Bits 31--16 of the main memory address}
\end{RegisterBitDescriptions}
\RegisterBitOverview{0xFFCF}{DSMAL}{Memory Address L}{dddd dddd dddd dddd}
\begin{RegisterBitDescriptions}
\RegisterBitDescription{15--0}{d}{R}{Bits 15--0 of the main memory address}
\RegisterBitDescription{15--0}{d}{R/W}{Bits 15--0 of the main memory address}
\end{RegisterBitDescriptions}
\pagebreak{}