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SP0256-012 - Intellivision Wiki

SP0256-012


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(Overview)
m (Protected "SP0256-012" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite)))
 
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The SP0256-012 is a specific variant of the SP0256 Speech ProcessorThe SP0256 combines a microsequencer and a 2K bit masked ROM with an LPC-12 speech core that was derived from a previous device, the SP0250.  The "012" designation indicates an SP0256 programmed with Mattel's [[SP0256 Resident ROM|Resident ROM (RESROM)]] image, as used in the United States.
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The SP0256-012 is a specific variant of the SP0256 Narrator speech processorAs seen in the block diagram below, the SP0256 combines a microsequencer and a 2K x 8 bit masked ROM with an LPC-12 speech core that was derived from a previous device, the SP0250.   
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Other known SP0256 variants known to exist include:
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[[Image:Sp0256b_block_diagram_16color.png||Block Diagram]]
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The "012" designation indicates an SP0256 programmed with Mattel's [[SP0256 Resident ROM|Resident ROM (RESROM)]] image, as used in the United States.  According to the Blue Sky Rangers, Mattel developed or planned to develop variants for other languages intended for other countries.  It seems none were produced.  There are other known SP0256 variants, including:
* SP0256-AL2.  This is probably the most common variant, as it was sold by Radio Shack for an extended period of time.  The SP0256-AL2 contains a set of allophones, thus enabling text-to-speech applications.  Allophone-based speech is rather low quality as compared to the dedicated samples in the SP0256-012's RESROM, or in Mattel's voice-enabled games.
* SP0256-AL2.  This is probably the most common variant, as it was sold by Radio Shack for an extended period of time.  The SP0256-AL2 contains a set of allophones, thus enabling text-to-speech applications.  Allophone-based speech is rather low quality as compared to the dedicated samples in the SP0256-012's RESROM, or in Mattel's voice-enabled games.
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* SP0256-019.  This variant is found in the Odyssey 2's "The Voice" attachment.  It a number of game oriented phrases, as well as hooks for a rather large library of speech ROMs.  One of these speech ROMs appears to contain the same allophone library as appears in the SP0256-AL2.
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* SP0256-019.  This variant is found in the Odyssey 2's "The Voice" attachment.  It has a number of game oriented phrases, as well as hooks for a rather large library of speech ROMs.  One of these speech ROMs appears to contain the same allophone library as appears in the SP0256-AL2.
* SP0256-017.  Unknown contents.  (Believed to come from a talking clock?)
* SP0256-017.  Unknown contents.  (Believed to come from a talking clock?)
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The speech data from other SP0256 variants can be dumped and used via the [[SPB640|SPB640 Speech FIFO]] in new programs.  This is, for instance, how Tag Along Todd 2 in SDK-1600 speaks.
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The speech data from other SP0256 variants can be dumped and reused on the Intellivoice via the [[SPB640|SPB640 Speech FIFO]] in new programs.  This is, for instance, how Tag Along Todd 2 in SDK-1600 speaks.
==General Behavior==
==General Behavior==
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<caption>Microsequencer Registers</caption>
<caption>Microsequencer Registers</caption>
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<tr><td>[[SP0256 Program Counter|PC]]</td><td>16-bit program counter</td></tr>
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<tr><td>[[SP0256 Program Counter|PC]]</td><td>19-bit, bit-aligned program counter</td></tr>
<tr><td>[[SP0256 Page Prefix|PAGE]]</td><td>4-bit address extension register</td></tr>
<tr><td>[[SP0256 Page Prefix|PAGE]]</td><td>4-bit address extension register</td></tr>
<tr><td>[[SP0256 Coefficient Mode|MODE]]</td><td>2-bit precision select, register-set select</td></tr>
<tr><td>[[SP0256 Coefficient Mode|MODE]]</td><td>2-bit precision select, register-set select</td></tr>

Latest revision as of 09:12, 4 December 2010

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