QBUS: Revision history

30 May 2025

• curprev 11:1211:12, 30 May 2025 Jnc talk contribs m 14,102 bytes +165 →External links: + Q-bus Expansion Concepts

31 July 2024

• curprev 22:5322:53, 31 July 2024 Jnc talk contribs m 13,937 bytes +63 →Further reading: +22-Bit Addressing for DMA Chipkit Users

29 July 2024

• curprev 11:0411:04, 29 July 2024 Jnc talk contribs m 13,874 bytes +72 →Further reading: +The LSI-11/23 and the LSI-11/2 Buses are the Same
• curprev 01:1201:12, 29 July 2024 Jnc talk contribs m 13,802 bytes +68 →Further reading: +LSI-11 vs. LSI-11/23 Transaction Differences
• curprev 01:1001:10, 29 July 2024 Jnc talk contribs m 13,734 bytes +50 →Further reading: +18-bit DMA with Chipkits

28 July 2024

• curprev 18:4118:41, 28 July 2024 Jnc talk contribs m 13,684 bytes +52 →Further reading: LSI-11 vs. LSI-l1/23 Bus Timing

27 July 2024

• curprev 17:3917:39, 27 July 2024 Jnc talk contribs m 13,632 bytes +62 →Further reading: +Removing Modules from "Live" Backplanes

26 July 2024

• curprev 15:3615:36, 26 July 2024 Jnc talk contribs m 13,570 bytes +26 →See also: +QBUS mounting boxes
• curprev 14:3414:34, 26 July 2024 Jnc talk contribs m 13,544 bytes +32 →See also: +Upgrading QBUS backplanes

25 July 2024

• curprev 22:2022:20, 25 July 2024 Jnc talk contribs m 13,512 bytes +37 →Further reading: +Block Mode DMA
• curprev 14:3714:37, 25 July 2024 Jnc talk contribs m 13,475 bytes +53 →Further reading: +LSI-11/23 Four-Level Interrupts

24 July 2024

• curprev 11:2911:29, 24 July 2024 Jnc talk contribs m 13,422 bytes +66 →Further reading: +LSI-11 Bus Theory of Operation
• curprev 01:0501:05, 24 July 2024 Jnc talk contribs m 13,356 bytes +84 Update URLs; original site now offline

14 January 2024

• curprev 21:2721:27, 14 January 2024 Jnc talk contribs m 13,272 bytes +19 →See also: +UniBone/QBone

4 July 2023

• curprev 12:5812:58, 4 July 2023 Jnc talk contribs m 13,253 bytes −3 →See also: re-org
• curprev 11:1811:18, 4 July 2023 Jnc talk contribs m 13,256 bytes −5 →See also: +QBUS peripherals
• curprev 01:0301:03, 4 July 2023 Jnc talk contribs m 13,261 bytes +14 →External links: +ref no, typo

2 July 2023

• curprev 16:0716:07, 2 July 2023 Jnc talk contribs m 13,247 bytes +22 →See also: +QBUS boot ROMs

17 February 2023

• curprev 11:2111:21, 17 February 2023 Jnc talk contribs m 13,225 bytes +356 →External links: +Microcomputer Products Handbook

20 September 2022

• curprev 00:2100:21, 20 September 2022 Jnc talk contribs m 12,869 bytes +7 Avoid dab

15 August 2022

• curprev 13:4513:45, 15 August 2022 Jnc talk contribs m 12,862 bytes +240 →External links: +Visual Field Guide

4 June 2022

• curprev 23:1623:16, 4 June 2022 Jnc talk contribs m 12,622 bytes +65 →External links: +QBUS Front Panel Project

6 April 2022

• curprev 12:0012:00, 6 April 2022 Jnc talk contribs m 12,557 bytes +476 link 'Microsystems Handbook'', ''Supermicrosystems Handbook" online

20 February 2022

• curprev 01:3101:31, 20 February 2022 Jnc talk contribs m 12,081 bytes +34 →See also: +UNIBUS and QBUS termination

21 November 2021

• curprev 02:0302:03, 21 November 2021 Jnc talk contribs m 12,047 bytes +28 →See also: +1

19 November 2021

• curprev 05:2005:20, 19 November 2021 Jnc talk contribs m 12,019 bytes +369 +manual, links

17 November 2021

• curprev 20:3720:37, 17 November 2021 Jnc talk contribs 11,650 bytes +37 expand on 'LSI-11 Bus' name origin

21 October 2021

• curprev 13:1913:19, 21 October 2021 Jnc talk contribs 11,613 bytes +398 →Backplanes: PMI damage reason still not fully understood

15 December 2020

• curprev 11:2211:22, 15 December 2020 Jnc talk contribs 11,215 bytes +1,228 More details (block mode, etc)

15 November 2019

• curprev 16:2416:24, 15 November 2019 Jnc talk contribs m 9,987 bytes 0 typo
• curprev 15:2215:22, 15 November 2019 Jnc talk contribs m 9,987 bytes +180 Tweaks, add link

30 September 2019

• curprev 14:0214:02, 30 September 2019 Jnc talk contribs m 9,807 bytes +45 →See also: + dab article on grants

14 December 2018

• curprev 00:1500:15, 14 December 2018 Jnc talk contribs m 9,762 bytes +19 +cat

8 July 2018

• curprev 23:3923:39, 8 July 2018 Jnc talk contribs 9,743 bytes +352 →Signalling: Add parity stuff

19 February 2018

• curprev 22:1722:17, 19 February 2018 Jnc talk contribs m 9,391 bytes +5 typo, copyedits
• curprev 22:1522:15, 19 February 2018 Jnc talk contribs 9,386 bytes +9 Update cat, add links

1 February 2018

• curprev 02:5802:58, 1 February 2018 Jnc talk contribs m 9,377 bytes +1 →Variable address size: clarify octal

17 December 2017

• curprev 01:2701:27, 17 December 2017 Jnc talk contribs m 9,376 bytes +58 links, typo

4 July 2016

• curprev 18:1418:14, 4 July 2016 Jnc talk contribs m 9,318 bytes +36 →Backplanes: clarify

12 June 2016

• curprev 12:1912:19, 12 June 2016 Jnc talk contribs m 9,282 bytes +56 →See also: +2
• curprev 11:3111:31, 12 June 2016 Jnc talk contribs 9,226 bytes +44 →Backplanes: add ref to cd page, fix error

11 June 2016

• curprev 23:0123:01, 11 June 2016 Jnc talk contribs 9,182 bytes +1,239 Add section on backplanes

1 June 2016

• curprev 15:3115:31, 1 June 2016 Jnc talk contribs m 7,943 bytes +4 →Pinout: link DEC alphabet

6 March 2016

• curprev 18:1618:16, 6 March 2016 Jnc talk contribs 7,939 bytes +1,240 →Signalling: Add some detail
• curprev 17:4917:49, 6 March 2016 Jnc talk contribs 6,699 bytes +151 Clarify similarity with UNIBUS
• curprev 15:3615:36, 6 March 2016 Jnc talk contribs m 6,548 bytes +128 →Variable address size: Note as target of redirecgt
• curprev 15:2115:21, 6 March 2016 Jnc talk contribs 6,420 bytes +1,572 Improve coverage of Q16/Q18/Q22

10 January 2016

• curprev 15:2915:29, 10 January 2016 Jnc talk contribs m 4,848 bytes +10 →By pin: typo
• curprev 15:2815:28, 10 January 2016 Jnc talk contribs 4,838 bytes +94 →By pin: Clarify references to Cxy pins
• curprev 15:2615:26, 10 January 2016 Jnc talk contribs m 4,744 bytes +45 →By signal: Shorten table by using two columns