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blog:x68_xsimm10ss [2020/08/02 12:10] – john | blog:x68_xsimm10ss [2020/08/07 21:21] (current) – john | ||
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- | ====== X68000 - TSR XSIMM10ss Memory Expansion Board ====== | + | ====== |
The X68000 has a 24bit address bus, which means it can address up to 16MB of RAM, however part of that address space is taken up by video memory and other memory mapped IO ranges, other than the 32bit 68030 models, all X68000 models can have up to 12MB of RAM. | The X68000 has a 24bit address bus, which means it can address up to 16MB of RAM, however part of that address space is taken up by video memory and other memory mapped IO ranges, other than the 32bit 68030 models, all X68000 models can have up to 12MB of RAM. | ||
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The first 2MB of RAM is always on the motherboard; | The first 2MB of RAM is always on the motherboard; | ||
- | The XSIMM6, XSIMM10 and XSIMM10ss all allow you to fit standard 30pin or 72pin SIMM modules to populate that address range between 2MB and 12MB. | + | The XSIMM6, XSIMM10 and XSIMM10ss all allow you to fit standard 30pin or 72pin SIMM modules to populate that address range between 2MB and 12MB. There' |
Unfortunately, | Unfortunately, | ||
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* A pair of 30pin, 16bit SIMM sockets | * A pair of 30pin, 16bit SIMM sockets | ||
* Two independent 32bit, 72pin SIMM sockets | * Two independent 32bit, 72pin SIMM sockets | ||
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===== Manual Scans ===== | ===== Manual Scans ===== |