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Add note on config mode 43h UB, fix typo in video timings section

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This commit is contained in:
Albert Liu 2021-01-26 20:39:53 -08:00
parent 04d063f6a4
commit ae16b4fabf
2 changed files with 7 additions and 2 deletions
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7
docs/controllersandmemorycards.md
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@ -1404,7 +1404,12 @@ button data, can be used to return to normal mode.<br/>
xx=01h Stay in Configuration mode
```
Back in normal mode, the rumble motors (if they were enabled) can be controlled
with normal command 42h.<br/>
with normal command 42h. Some controller revisions will only change config mode
state upon receiving the entire command sequence while others will set it
immediately on receiving the xx byte. So while aborting the command sequence
early (i.e. setting JOY_CTRL to 0 after sending xx, which some homebrew software
does) may work for setting config mode state on some controllers, in practice
this technique is undefined behavior and use should be avoided.<br/>
#### Config Mode - Command 44h "D" - Set LED State (analog mode on/off)
```

2
docs/graphicsprocessingunitgpu.md
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@ -1220,7 +1220,7 @@ Consoles will always use the video clock for its region, regardless of the GPU b
314 scanlines per field for PAL non-interlaced
312.5 scanlines per field for PAL interlaced
```
Horizontal blanking and vertical blanking signals occur on the video output side as expected for NTSC/PAL signals. These are not necessarily the same as the timmer/interrupt HBLANK and VBLANK.
Horizontal blanking and vertical blanking signals occur on the video output side as expected for NTSC/PAL signals. These are not necessarily the same as the timer/interrupt HBLANK and VBLANK.
#### Vertical Refresh Rates
```