Amiga Hardware Database Expansion cards



Turbo Amiga CPU (A1000)
Company
Computer System Associates, USA
 Date
1986
 Amiga
A1000
 Interface
Turbo Amiga Cube
 
    processor card - Turbo Amiga CPU (CSA 00920)
  • 68020 and 68881 @ 14.3 MHz, PGA, synchronous
  • both chips are overclocked 12 MHz units
  • when addressing the Amiga custom chips or the motherboard memory, the 68020 throttles back to 7 MHz
  • 68000 fallback mode selectable by jumper
    optional static memory card - Turbo Amiga Memory (CSA 00919)
  • without this RAM card, the 68020 performs 15% slower than the original 7 MHz 68000, because of the additional time it takes to generate 24 bit addresses for the motherboard memory
  • the card fits into a free Zorro I slot, but instead of transmitting data via the Zorro bus, it attaches directly to the CPU card via four ribbon cables, and create a 32 bit memory bus
  • with the memory card installed, performance is increased to 2.8 times of a standard A1000
  • sixteen 32 pin DIP sockets for up to 512 kB static RAM
  • takes 32k×8, 100 ns SRAM chips in groups of four
  • does not autoconfig its memory
  • multiple Turbo Amiga Memory cards can be installed



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