CPU variants: Revision history

7 April 2024

• curprev 14:2814:28, 7 April 2024‎ Lidnariq talk contribs‎ 7,297 bytes −225‎ eugene-s tells me that all four revisions of the 6561xx-2s as well as 6561F-1 have the correct duty cycles, and that revision F is oldest, so it's unlikely that QFP80 6561 duties were ever wrong

22 September 2023

• curprev 06:3306:33, 22 September 2023‎ Fiskbit talk contribs‎ 7,522 bytes +33‎ Adds new ceramic RP2A03 image.

14 May 2023

• curprev 07:3907:39, 14 May 2023‎ Forple talk contribs‎ m 7,489 bytes −1‎ There is no T in "1818N". Believe me, I got literary professionals to check that one out for me to make sure I'm right with this edit.
• curprev 07:1107:11, 14 May 2023‎ Forple talk contribs‎ 7,490 bytes −12‎ NTSC 1818 Exists. It's an 1818N.

6 May 2023

• curprev 08:2108:21, 6 May 2023‎ Forple talk contribs‎ m 7,502 bytes +1‎ wiki formatting is very hard, it seems.
• curprev 08:2008:20, 6 May 2023‎ Forple talk contribs‎ 7,501 bytes +373‎ Got some odd famiclones and some weird chips inside. Documenting it here.

15 April 2023

• curprev 01:1801:18, 15 April 2023‎ Lidnariq talk contribs‎ 7,128 bytes +47‎ 2a03e we know is /rdy now

6 April 2023

• curprev 05:2505:25, 6 April 2023‎ Loglow talk contribs‎ 7,081 bytes +54‎ Added UA6527PQ and photo

22 March 2023

• curprev 05:3105:31, 22 March 2023‎ Forple talk contribs‎ 7,027 bytes −18‎ Update TA-03N Pin 30 Info

10 March 2023

• curprev 06:3806:38, 10 March 2023‎ Loglow talk contribs‎ 7,045 bytes +585‎ Added several unknown brand and SENiTON chips with pictures

8 March 2023

• curprev 07:1607:16, 8 March 2023‎ Forple talk contribs‎ 6,460 bytes +93‎ TA-03N has some oddities with its Illegal Opcodes. More research into it would likely be necessary.

4 March 2023

• curprev 05:1705:17, 4 March 2023‎ Forple talk contribs‎ 6,367 bytes +137‎ Add TA03N Underside image

3 March 2023

• curprev 19:3219:32, 3 March 2023‎ Forple talk contribs‎ 6,230 bytes +9‎ Update TA-03N information; most TA-0x series chips are die mask clones

26 February 2023

• curprev 01:4001:40, 26 February 2023‎ Lidnariq talk contribs‎ 6,221 bytes +75‎ eugene S in the discord described pulse duties for these two

13 February 2023

• curprev 11:4611:46, 13 February 2023‎ Fiskbit talk contribs‎ 6,146 bytes +248‎ Notes that DMC status bit is cleared 1 APU cycle late on UA6527P, TA-03NP1, (T)1818P, UM6561-2. Other clones untested.
• curprev 01:1401:14, 13 February 2023‎ Jeffythedragonslayer talk contribs‎ m 5,898 bytes 0‎ capitalization

11 February 2023

• curprev 05:2505:25, 11 February 2023‎ Fiskbit talk contribs‎ 5,898 bytes +358‎ UM6561xx-2 updates. F is suspected to be the first revision. Eugene reports F has correct duties. Notes my findings regarding AF DMC and illegal instruction behavior.

24 December 2022

• curprev 05:2005:20, 24 December 2022‎ Fiskbit talk contribs‎ m 5,540 bytes 0‎ Fixes formatting.

23 December 2022

• curprev 21:0121:01, 23 December 2022‎ Lidnariq talk contribs‎ 5,540 bytes +165‎ 6540 apparently not so much a PAL clone

28 September 2022

• curprev 18:4118:41, 28 September 2022‎ Lidnariq talk contribs‎ 5,375 bytes +91‎ UA6527P clock divider