Semiconductor & Computer Engineering
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{{title|Bit-Slice Microprocessor (BSM)}} | {{title|Bit-Slice Microprocessor (BSM)}} | ||
| − | A '''bit-slice microprocessor''' ('''BSM''') is a [[microprocessor]] designed as a module with the primary purpose of being able to assemble multiple identical such microprocessors to form a larger processor of some desired [[word size]]. Bit-slice microprocessors can be cascaded to produce any conventional (e.g. [[4-bit architecture|4-bit]], [[8-bit architecture|8-bit]], [[16-bit architecture|16-bit]]) as well as unconventional word sizes (e.g. [[10-bit architecture|10-bit]], [[12-bit architecture|12-bit]], [[ | + | A '''bit-slice microprocessor''' ('''BSM''') is a [[microprocessor]] designed as a module with the primary purpose of being able to assemble multiple identical such microprocessors to form a larger processor of some desired [[word size]]. Bit-slice microprocessors can be cascaded to produce any conventional (e.g. [[4-bit architecture|4-bit]], [[8-bit architecture|8-bit]], [[16-bit architecture|16-bit]]) as well as unconventional word sizes (e.g. [[10-bit architecture|10-bit]], [[12-bit architecture|12-bit]], [[16-bit architecture|16-bit]]). A notable advantage of a BSM over discrete logic components is the fact that most connections are internal to the chip with only few connections being external. |
A departure from normal [[microprocessor]]s is that fact that many bit-slice chips do not have an [[instruction set architecture]]. Such bit slicing systems allow designers to create their own architecture and other key characteristics such as I/O pins and address width. This flexibility of course came with overall more expensive system and larger amount of ICs. | A departure from normal [[microprocessor]]s is that fact that many bit-slice chips do not have an [[instruction set architecture]]. Such bit slicing systems allow designers to create their own architecture and other key characteristics such as I/O pins and address width. This flexibility of course came with overall more expensive system and larger amount of ICs. | ||
