https://www.3dbrew.org/w/index.php?action=history&feed=atom&title=I2C%3ALegacyReadRegisters8 2026-06-02T07:54:15Z Revision history for this page on the wiki MediaWiki 1.43.1 https://www.3dbrew.org/w/index.php?title=I2C:LegacyReadRegisters8&diff=23838&oldid=prev 2026-05-28T12:42:14Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:42, 28 May 2026</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l25">Line 25:</td> <td colspan="2" class="diff-lineno">Line 25:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Description=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Description=</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Reads a range of 8-bit I2C registers of the specified device sequentially to the given buffer.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Reads a range of 8-bit I2C registers of the specified device sequentially to the given buffer.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The maximum output buffer size is 0x200 for the New3DS i2c-sysmodule, and 0x20 for the Old3DS version.</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This is similar to [[I2C:ReadRegisters8]] except:</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This is similar to [[I2C:ReadRegisters8]] except:</div></td></tr> <!-- diff cache key 3dbrew:diff:1.41:old-23821:rev-23838:php=table --> </table>

TimmSkiller https://www.3dbrew.org/w/index.php?title=I2C:LegacyReadRegisters8&diff=23821&oldid=prev 2026-05-28T11:53:25Z

<p>Created page with &quot;=Request= {{IPC/Request}} {{IPC/RequestHeader|0x000F|3|0}} {{IPC/RequestEntry|u8, device ID}} {{IPC/RequestEntry|u8, starting register}} {{IPC/RequestEntry|u32, size}} {{IPC/RequestEnd}} =Request Static Buffers= {{IPC/RequestStaticBuffers}} {{#vardefine:ipc_offset|0}} {{IPC/TranslateStaticBuffer|Output buffer pointer|0}} {{IPC/RequestEnd}} =Response= {{IPC/Request}} {{#vardefine:ipc_offset|0}} {{IPC/RequestHeader|0x000F|1|2}} {{IPC/RequestEntry|Result code}} {{IPC/Tr...&quot;</p> <p><b>New page</b></p><div>=Request=<br /> <br /> {{IPC/Request}}<br /> {{IPC/RequestHeader|0x000F|3|0}}<br /> {{IPC/RequestEntry|u8, device ID}}<br /> {{IPC/RequestEntry|u8, starting register}}<br /> {{IPC/RequestEntry|u32, size}}<br /> {{IPC/RequestEnd}}<br /> <br /> =Request Static Buffers=<br /> {{IPC/RequestStaticBuffers}}<br /> {{#vardefine:ipc_offset|0}}<br /> {{IPC/TranslateStaticBuffer|Output buffer pointer|0}}<br /> {{IPC/RequestEnd}}<br /> <br /> =Response=<br /> <br /> {{IPC/Request}}<br /> {{#vardefine:ipc_offset|0}}<br /> {{IPC/RequestHeader|0x000F|1|2}}<br /> {{IPC/RequestEntry|Result code}}<br /> {{IPC/TranslateStaticBuffer|Output buffer pointer|0}}<br /> {{IPC/RequestEnd}}<br /> <br /> =Description=<br /> Reads a range of 8-bit I2C registers of the specified device sequentially to the given buffer.<br /> <br /> This is similar to [[I2C:ReadRegisters8]] except:<br /> * Before selecting the device, this waits 1500ns.<br /> * Before reading the first byte and after reading the last byte, this waits 15µs.<br /> <br /> For example, assuming:<br /> <br /> &lt;pre&gt;<br /> reg[5] = 0xAA, reg[6] = 0xBB, reg[7] = 0xCC, reg[8] = 0xDD<br /> &lt;/pre&gt;<br /> <br /> Then reading 4 bytes with starting register 5 would result in:<br /> <br /> &lt;pre&gt;<br /> outbuf[0] = 0xAA<br /> outbuf[1] = 0xBB<br /> outbuf[2] = 0xCC<br /> outbuf[3] = 0xDD<br /> &lt;/pre&gt;</div>

TimmSkiller