[sdiy] Alesis MidiVerb II DSP

[Andre Majorel]

On 2006-12-15 01:56 +0200, Margus Kliimask wrote:

> Does anyone have any idea what is the DSP (?) chip inside Alesis MidiVerb
> II? It has Texas Instruments logo, and is marked as:
> CF61252FN
> N    48816
> 8715 (probably time of manufacturing)
> 
> Any ideas? Datasheets would be even better :) And does anyone know whether
> the same one is inside MidiVerb III ?

My Midiverb III has a Fujitsu JAPAN; MB653327U; 8932 E01; ALESIS
89Z in a square 68-pin package (PLCC ?). It sports a big sticker
saying "MFG1025".

Nearby chips :

  DIP28 BB JAPAN; PCM54HP; 8910 C7 040 (ADC or DAC)
  DIP28 Sony 9F07; CXK58256P-12L; JAPAN 751798 (prob delay SRAM)
  DIP24N CY7C128-45PC; USA8927; 35405

On the other side :

  DIP40 Signetics SC80C31BCCN40; 2295K06 8931KE (CPU)
  CERDIP28 with label "ALESIS 10-9-89 A; MV3 V1.00 A321" (CPU ROM)
  DIP24 XICOR; X2816BP; T8929 (CPU program RAM ?)

-- 
André Majorel <URL:http://www.teaser.fr/~amajorel/>
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