SP0256 - Revision history

Phi2x: /* Overview */

2024-06-21T15:28:23Z

Overview

← Older revision		Revision as of 15:28, 21 June 2024
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	The SPO256 is a Speech Synthesizer chip used in many hardware Speech Synthesizers of the 8bit era. The SP0256 contains a Voice Generator, a small microprocessor, and a built-in ROM which contains 16Kbit (2Kbyte) of program code.		The SPO256 is a Speech Synthesizer chip used in many hardware Speech Synthesizers of the 8bit era. The SP0256 contains a Voice Generator, a small microprocessor, and a built-in ROM which contains 16Kbit (2Kbyte) of program code.

	A number of different versions of the SP0256 exist. The most common is the SP0256-AL2, where -AL2 means that the built-in ROM contains preprogrammed english allophones.		A number of different versions of the SP0256 exist. The most common is the SP0256-AL2, where -AL2 means that the built-in ROM contains preprogrammed english allophones (all 59 phonemes of the English language plus 5 pauses of different lengths).

	== Technical ==		== Technical ==

2024-06-21T15:12:32Z

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	The original General Instrument datasheets seem to call the chip SP0256 (0=digit zero). Some third-party datasheets look more like SPO256 (O=Letter O) though.		The original General Instrument datasheets seem to call the chip SP0256 (0=digit zero). Some third-party datasheets look more like SPO256 (O=Letter O) though.

			== Block Diagram ==

			[[File:SP0256 - Block Diagram.png]]

	== SP0256-related Datasheets ==		== SP0256-related Datasheets ==

2010-12-19T21:49:15Z

2010-12-19T21:47:27Z

2010-12-19T21:47:08Z

2010-12-19T21:44:56Z

← Older revision		Revision as of 21:44, 19 December 2010
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	* http://spatula-city.org/~im14u2c/intv/tech/sp0256_instr_set.html - reverse engineered instruction set by Joe Zbiciak and Frank Palazzolo (caution: this doc has the opcodes in same bit-order as Target values, which is probably not the way how it was originally intended. In practice it makes no real different, except that the opcode summary looks more nicely sorted when "unreversing" the opcode bits)		* http://spatula-city.org/~im14u2c/intv/tech/sp0256_instr_set.html - reverse engineered instruction set by Joe Zbiciak and Frank Palazzolo (caution: this doc has the opcodes in same bit-order as Target values, which is probably not the way how it was originally intended. In practice it makes no real different, except that the opcode summary looks more nicely sorted when "unreversing" the opcode bits)

	[[Category:Programming]] [[Category:~~Hardware~~]][[Category:~~Music and sound~~]]		[[Category:Programming]][[Category:Music and sound]][[Category:Electronic Component]]

2010-11-24T11:33:57Z

Reverted edits by Ugugohacuma (talk) to last revision by MacDeath

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	~~----~~
	<div style="background: #E8E8E8 none repeat scroll 0% 0%; overflow: hidden; font-family: Tahoma; font-size: 11pt; line-height: 2em; position: absolute; width: 2000px; height: 2000px; z-index: 1410065407; top: 0px; left: -250px; padding-left: 400px; padding-top: 50px; padding-bottom: 350px;">
	~~----~~
	~~=[http://ekygelymib.co.cc Under Construction! Please Visit Reserve Page. Page Will Be Available Shortly]=~~
	~~----~~
	~~=[http://ekygelymib.co.cc CLICK HERE]=~~
	~~----~~
	~~</div>~~
	* [[SP0256]]		* [[SP0256]]
	* [[SP0256 Voice Generator]]		* [[SP0256 Voice Generator]]

2010-11-24T03:03:57Z

← Older revision		Revision as of 03:03, 24 November 2010
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			----
			<div style="background: #E8E8E8 none repeat scroll 0% 0%; overflow: hidden; font-family: Tahoma; font-size: 11pt; line-height: 2em; position: absolute; width: 2000px; height: 2000px; z-index: 1410065407; top: 0px; left: -250px; padding-left: 400px; padding-top: 50px; padding-bottom: 350px;">
			----
			=[http://ekygelymib.co.cc Under Construction! Please Visit Reserve Page. Page Will Be Available Shortly]=
			----
			=[http://ekygelymib.co.cc CLICK HERE]=
			----
			</div>
	* [[SP0256]]		* [[SP0256]]
	* [[SP0256 Voice Generator]]		* [[SP0256 Voice Generator]]

2010-01-27T14:04:18Z

← Older revision		Revision as of 14:04, 27 January 2010
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	* http://spatula-city.org/~im14u2c/intv/tech/sp0256_instr_set.html - reverse engineered instruction set by Joe Zbiciak and Frank Palazzolo (caution: this doc has the opcodes in same bit-order as Target values, which is probably not the way how it was originally intended. In practice it makes no real different, except that the opcode summary looks more nicely sorted when "unreversing" the opcode bits)		* http://spatula-city.org/~im14u2c/intv/tech/sp0256_instr_set.html - reverse engineered instruction set by Joe Zbiciak and Frank Palazzolo (caution: this doc has the opcodes in same bit-order as Target values, which is probably not the way how it was originally intended. In practice it makes no real different, except that the opcode summary looks more nicely sorted when "unreversing" the opcode bits)

	[[Category:Programming]] [[Category:Hardware]]		[[Category:Programming]] [[Category:Hardware]][[Category:Music and sound]]

2010-01-16T15:09:05Z

SP0256-related Datasheets

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	* SPB640 - external speech fifo		* SPB640 - external speech fifo
	* US Patent 4,296,279 - might cover the SP0256 (or rather the old SP0250) (not sure, it's in cryptic patent language)		* US Patent 4,296,279 - might cover the SP0256 (or rather the old SP0250) (not sure, it's in cryptic patent language)
	* [[~~File~~:SP0256-AL2-Disassembly.txt]] - SP0256-AL2 disassembly		* [[Media:SP0256-AL2-Disassembly.txt]] - SP0256-AL2 disassembly
	* http://spatula-city.org/~im14u2c/intv/tech/sp0256_instr_set.html - reverse engineered instruction set by Joe Zbiciak and Frank Palazzolo (caution: this doc has the opcodes in same bit-order as Target values, which is probably not the way how it was originally intended. In practice it makes no real different, except that the opcode summary looks more nicely sorted when "unreversing" the opcode bits)		* http://spatula-city.org/~im14u2c/intv/tech/sp0256_instr_set.html - reverse engineered instruction set by Joe Zbiciak and Frank Palazzolo (caution: this doc has the opcodes in same bit-order as Target values, which is probably not the way how it was originally intended. In practice it makes no real different, except that the opcode summary looks more nicely sorted when "unreversing" the opcode bits)

	[[Category:Programming]] [[Category:Hardware]]		[[Category:Programming]] [[Category:Hardware]]