Zorro II is the general purpose expansion bus used by the Amiga 2000 computer. The bus is mainly a buffered extension of the Motorola 68000 bus, with support for bus mastering DMA. The expansion slots use a 100-pin connector and the card form factor is the same as the IBM PC. Zorro II cards implement the Autoconfig protocol for automatic address space assignment (similar to the later PCI technology on the PC).
The prototype "Zorro bus" expansion box for the Amiga 1000 was the basis for the initial Amiga 2000-A model design. This box connected to the Amiga 1000 unbuffered CPU bus card edge connector.
Zorro II was succeeded by Zorro III, a 32-bit, asynchronous bus.
Amiga memory map
[edit]| Address | Size [MByte] | Description |
|---|---|---|
| 0x00 0000 | 2.0 | Chip memory |
| 0x20 0000 | 8.0 | Zorro II memory expansion space |
| 0xA0 0000 | 1.5 | Zorro II I/O expansion space |
| 0xB8 0000 | 3.0 | A2000 motherboard register space |
| 0xE8 0000 | 0.5 | Zorro II I/O |
| 0xF0 0000 | 1.0 | Motherboard ROM |
External links
[edit]
- Amiga Hardware Database - Descriptions and photos of Zorro II cards.
- Discussion about speed of Zorro
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Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest.  Category | |
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction