PSP Video Timings

	A	B	C	D	E
1	Dot Clock	0.0370373 μs	calculated backwards using a checkerboard pattern and adjustment of H. Refresh
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3		Fullscreen (main menu)	Letterboxed (in-game)
4	H. Refresh	31.7780115 μs	31.7780115 μs
5	H. Active	26.6668628 μs	17.7779085 μs	fullscreen measured as 26.7, changed to 26.666862814 to result in 720 H. Active	letterboxed measured as 17.76, changed to 17.7779085427 to result in 480 H. Active
6	H. Frontporch	2.22 μs	5.00 μs
7	H. Sync	2.32 μs	2.32 μs
8	H. Backporch	0.56 μs	6.72 μs
9	H. Total	31.7668628 μs	31.8179085 μs	should approx. equal H.Refresh
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11	V. Refresh	16,680.00 μs	16,680.00 μs
12	V. Active	15,253.45 μs	8,643.6191334 μs	fullscreen measured as 15240, changed to 15,253.45 to result in 480 V. active lines	letterboxed measured as 8660, changed to 8,643.61913344 to result in 272 V. active lines
13	V. Frontporch	954.00 μs	3,600.00 μs
14	V. Sync	193.20 μs	193.20 μs
15	V. Backporch	286.00 μs	4,260.00 μs
16	V. Total	16,686.65 μs	16,696.8191334 μs	should approx. equal V. Refresh
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18	V. Refresh Lines	524.89	524.89
19	V. Active Lines	480.00	272.00
20	V. Frontporch Lines	30.02	113.29
21	V. Sync Lines	6.08	6.08
22	V. Backporch Lines	9.00	134.05
23	V. Total Lines	525.10	525.42	should approx. equal V. Refresh Lines
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25	H. Refresh Pixels	858.00	858.00
26	H. Active Pixels	720.00	480.00
27	H. Frontporch Pixels	59.94	135.00
28	H. Sync Pixels	62.64	62.64
29	H. Backporch Pixels	15.12	181.44
30	H. Total Pixels	857.70	859.08	should approx. equal H. Refresh Pixels
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32	Refresh Rate	59.9520384 Hz	59.9520384 Hz
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34	When in letterboxed, given that V. backporch is too limited for the above
35	V. Backporch	63	this is the highest allowed by the ossc
36	V. Active	344	this is the lowest without losing pixels
37	H. Active	607.06	this preserves the aspect ratio
38
39	The above produces a 607x344 (or 1214x688 in line2x mode) image, which doesn't scale well on my TV. Instead, we can get a nice 720p image with line2x mode as follows
40	V. Backporch	63	this is the highest allowed by the ossc
41	V. Active	360	line2x makes this 720p
42	H. Active	635.29	this preserves the aspect ratio
43	H. Active	640	does not preserve the aspect ratio, but upscales perfectly as 1280x720 to most TVs
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45	My PSP has a very noisy video signal. I've found that setting Reverse LPF to 3 helps a lot.
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