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Amiga Expansion Bus A.K.A Zorro I specification users reports and reviews

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2016-10-29 22:33:15rev. 1INCORRECTI measured VCC on pin 3 and pin 8 did not have -12 VAPPROVED
2017-04-10 23:27:58rev. 1ERROR FIXEDPinouts are aren't correct, as listed in the A500 technical reference they are: Pin Name 1 GND 2 GND 3 GND 4 GND 5 +5v 6 +5v 7 exp 8 -12v 9 exp 10 +12v 11 exp 12 CONFIG 13 GND 14 C3 15 CDAC 16 C1 17 OVR 18 XRDY 19 INT2 20 PALOPE 21 A5 22 INT6 23 A6 24 A4 25 GND 26 A3 27 A2 28 A7 29 A1 30 A8 31 FC0 32 A9 33 FC1 34 A10 35 FC2 36 A11 37 GND 38 A12 39 A13 40 IPL0 41 A14 42 IPL1 43 A15 44 IPL2 45 A16 46 BERR 47 A17 48 VPA 49 GND 50 E 51 VMA 52 A18 53 RES 54 A19 55 HLT 56 A20 57 A22 58 A21 59 A23 60 BR 61 GND 62 BGCAK 63 PD15 64 BG 65 PD14 66 DTACK 67 PD13 68 PRW 69 PD12 70 LDS 71 PD11 72 UDS 73 GND 74 AS 75 PD0 76 PD10 77 PD1 78 PD9 79 PD2 80 PD8 81 PD3 82 PD7 83 PD4 84 PD6 85 GND 86 PD5 APPROVED
2021-08-23 01:56:44rev. 2ERROR FIXEDTHANK YOU VERY MUCH FOR A WAY TO CORRECT PINOUTS!! In the HTML and Text 2 examples on this page: Pin 8 "Pin Name" is listed as "-12V". It should be changed to "-5V". Reference "-5V" can be found on Pages # 392, 409, 426, and 437 in the Amiga Hardware Reference Manual in print, and online at: https://archive.org/details/amiga-hardware-reference-manual-3rd-edition/page/445/mode/2up Thanks again all! P.S. I was Sr. Hardware Engineer at Amiga Inc in the late 1990's. 8*D APPROVED
2022-07-22 10:28:46rev. 3ERROR FIXEDThis is partially correct. Pin 8 measures -5V on my Amiga 1000, however, on my Amiga 500s (Rev 6a and Rev 5) it measures -12V. No idea why Commodore would make this difference. Fyi, TODAPPROVED


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