=====Amiga Bus=====

Here is some data on the Amiga's bus. Since I'm gathering enough data to build a Zorro II card I figured I could consolidate it and share it.

On the A2000
  * pin1 from the underside, where the pokeys poke through, is top right
  * pin1 from the top where the card goes in is top left

^PCB Label^ Slot Number^Type^Part Number^Notes^
|CN600|na|CPU slot|Foxconn ES04306|86 pins|
|CN601|5|Zorro II|Foxconn ES05006|far left|
|CN602|4|Zorro II|Foxconn ES05006|2nd from left|
|CN603|3|Zorro II|Foxconn ES05006|middle|
|CN604|2|Zorro II|Foxconn ES05006|2nd from right|
|CN605|1|Zorro II|Foxconn ES05006|far right|
|CN700|na|8 bit PC| |far left|
|CN701|na|8 bit PC| |2nd from left|
|CN702|na|8 bit PC| |2nd from right|
|CN703|na|8 bit PC| |far right|
|CN704|na|16 bit PC|Foxconn ES01806 \\ or 530843.3|far left, empty, no connector soldered|
|CN705|na|16 bit PC|Foxconn ES01806 \\ or 530843.3|2nd from left, empty,  no connector soldered|
|CN706|na|16 bit PC|Foxconn ES01806 \\ or 530843.3|2nd from right, flows down to Zorro slot 5|
|CN707|na|16 bit PC|Foxconn ES01806 \\ or 530843.3|far right, flows down to Zorro slot 4|


====Bus====

This is a popular copy of the pin out of the Amiga Bus, The A2000 and A3000 use a 100pin edge connector. This is a standard connector. If you can find one for a PC (IBM clone) it will work in the Amiga. 

Why no reference to A4000? I know everyone wants one, but, the A3000 was the peak for me. If you want to donate me an A4000 I'll write up notes for it. 


^Pin^A500^A1000^A2000^A2000B^Name^Description^
|1|X|X|X|X|GND|Ground|
|2|X|X|X|X|GND|Ground|
|3|X|X|X|X|GND|Ground|
|4|X|X|X|X|GND|Ground|
|5|X|X|X|X|+5V|+5 Volts DC|
|6|X|X|X|X|+5V|+5 Volts DC|
|7|X|X|X|X|n/c||
|8|X|X|X|X|-5V|-5 Volts DC|
|9|X|X|||n/c||
|9|||X|X|28CLOCK|28MHz Clock|
|10|X|X|X|X|+12V|+12 Volts DC|
|11|X|X|||n/c||
|11|||X|X|/COPCFG|Configuration Out|
|12|X|X|X|X|CONFIG IN| Grounded| 
|13|X|X|X|X|GND|Ground|
|14|X|X|X|X|/C3|C3 Clock|
|15|X|X|X|X|CDAC|Clock|
|16|X|X|X|X|/C1|C1 Clock|
|17|X|X|X|X|/OVR||
|18|X|X|X|X|RDY|Ready|
|19|X|X|X|X|/INT2|Interrupt 2|
|20|X*|X|||/PALOPE|* This signal is NC on a A500 with a Gary Chip|
|20|||X||n/c||
|20||||X|/BOSS||
|21|X|X|X|X|A5|Address 5|
|22|X|X|X|X|/INT6|Interrupt 6|
|23|X|X|X|X|A6|Address 6|
|24|X|X|X|X|A4|Address 4|
|25|X|X|X|X|GND|Ground|
|26|X|X|X|X|A3|Address 3|
|27|X|X|X|X|A2|Address 2|
|28|X|X|X|X|A7|Address 7|
|29|X|X|X|X|A1|Address 1|
|30|X|X|X|X|A8|Address 8|
|31|X|X|X|X|FC0|Processor status 0|
|32|X|X|X|X|A9|Address 9|
|33|X|X|X|X|FC1|Processor status 1|
|34|X|X|X|X|A10|Address 10|
|35|X|X|X|X|FC2|Processor status 2|
|36|X|X|X|X|A11|Address 11|
|37|X|X|X|X|GND|Ground|
|38|X|X|X|X|A12|Address 12|
|39|X|X|X|X|A13|Address 13|
|40|X|X|X|X|/IPL0||
|41|X|X|X|X|A14|Address 14|
|42|X|X|X|X|/IPL1||
|43|X|X|X|X|A15|Address 15|
|44|X|X|X|X|/IPL2||
|45|X|X|X|X|A16|Address 16|
|46|X|X|X|X|/BEER|Bus Error|
|47|X|X|X|X|A17|Address|
|48|X|X|X|X|/VPA||
|49|X|X|X|X|GND|Ground|
|50|X|X|X|X|ECLK|E Clock|
|51|X|X|X|X|/VMA||
|52|X|X|X|X|A18|Address 18|
|53|X|X|X|X|RST|Reset|
|54|X|X|X|X|A19|Address 19|
|55|X|X|X|X|/HLT|Halt|
|56|X|X|X|X|A20|Address 20|
|57|X|X|X|X|A22|Address 22|
|58|X|X|X|X|A21|Address 21|
|59|X|X|X|X|A23|Address 23|
|60|X|X|||/BR||
|60|||X|X|/CBR||
|61|X|X|X|X|GND|Ground|
|62|X|X|X|X|/BGACK||
|63|X|X|X|X|D15|Data 15|
|64|X|X|||/BG||
|64|||X|X|/CBG||
|65|X|X|X|X|D14|Data 14|
|66|X|X|X|X|/DTACK||
|67|X|X|X|X|D13|Data 13|
|68|X|X|X|X|R/W|Read/Write|
|69|X|X|X|X|D12|Data 12|
|70|X|X|X|X|/LDS||
|71|X|X|X|X|D11|Data 11|
|72|X|X|X|X|/UDS||
|73|X|X|X|X|GND|Ground|
|74|X|X|X|X|/AS||
|75|X|X|X|X|D0|Data 0|
|76|X|X|X|X|D10|Data 10|
|77|X|X|X|X|D1|Data 1|
|78|X|X|X|X|D9|Data 9|
|79|X|X|X|X|D2|Data 2|
|80|X|X|X|X|D8|Data 8|
|81|X|X|X|X|D3|Data 3|
|82|X|X|X|X|D7|Data 7|
|83|X|X|X|X|D4|Data 4|
|84|X|X|X|X|D6|Data 6|
|85|X|X|X|X|GND|Ground|
|86|X|X|X|X|D5|Data 5|
 
====Memory Map====

This is a grab of some data found on the Interwebs. This shows both Zorro II and III details

^Address^Size [MByte] ^Description^
|0x0000 0000|2.0|Chip memory|
|0x0020 0000|8.0|Zorro II memory expansion space|
|0x00A0 0000|1.5|Zorro II I/O expansion space|
|0x00B8 0000|3.0|A2000 motherboard register space|
|0x00E8 0000|0.5|Zorro II I/O|
|0x00F0 0000|1.0|Motherboard ROM|
|0x0100 0000|112.0|A3000 motherboard space|
|0x0800 0000|128.0|32-Bit memory expansion space|
|0x1000 0000|1792.0|Zorro III expansion space|
|0x8000 0000|2032.0|Reserved|
|0xFF00 0000|64 KB|Zorro III Configuration unit|
|0xFF01 0000 |16.0|Reserved|
|0xFFFF FFFF|16.0|Reserved|
| | | Who can count hexadecimal? is 0xFF01 0000 to 0xFFFF FFFF equal to 16MB? I'm not clear if the last fields are a beginning and end range or two ranges each at 16MB|



====Power====
This appears to the power that can be drawn through the bus. Nowadays, the only thing people care about is the 5v.

^Volt^Ampere^
|+5|2.0|
|-5|< 0.3|
|+12|< 8.0|
|-12|< 0.3|

====CPU Slot====

Amiga 2000 CPU Slot Pinout

^Pin^Name^
|1|gnd| 
|2|gnd
|3|gnd| 
|4|gnd
|5|+5V| 
|6|+5V| 
|7|exp| 
|8|-5V| 
|9|28 MHz| 
|10|+12V|
|11|COPFG*| 
|12|CONFIG*|
|13|gnd|
|14|C3*| 
|15|CDAC|
|16|C1*| 
|17|OVR*|
|18|XRDY|
|19|INT2*| 
|20|BOSS*|
|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|ILP0*|
|41|A14| 
|42|ILP1*|
|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|CBR*|
|61|gnd|
|62|BGACK*|
|63|PD15|
|64|CBG*|
|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|