Difference between revisions of "NEO-MGA"

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[[File:cd2_mga.jpg|right|thumb|NEO-MGA-T chip found on a CDM3-2 board.]]
 
[[File:cd2_mga.jpg|right|thumb|NEO-MGA-T chip found on a CDM3-2 board.]]
  
The NEO-MGA-T is a damn chip nobody knows about, which is found in the CD1 and CD2 versions of the NeoGeo hardware.
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The NEO-MGA is a damn chip apparently noone knows about, which is found in 3 versions in the CD systems:
The CD-Z has a NEO-MGA-T2, probably to handle the faster CD reading speeds and new copy protection system.
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*NEO-MGA in the CD1 model (front loading)
The front loading NeoGeo CD has a NEO-MGA chip.
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*NEO-MGA-T in the CD2 model ('''t'''op loading)
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*NEO-MGA-T2 in the CDZ probably able to handle the faster CD reading speeds and the new [[copy protection]] system.)
  
It's in charge of the communication with the CD drive, data transfers to the [[LC89515]] host and buffering CDDA data for the [[BIOSes]] vu-meters.
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It's used for communication between the main board and the [[CD modules|CD module]], for data transfers to the [[LC89515]] host and for buffering [[CDDA]] data.
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=Pinout=
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1,10,15,16,18,30,41,50,59,70,81,90,110,121,130,139,150: Ground.
  
 
[[Category:Chips]]
 
[[Category:Chips]]

Revision as of 02:08, 21 March 2011

NEO-MGA-T chip found on a CDM3-2 board.

The NEO-MGA is a damn chip apparently noone knows about, which is found in 3 versions in the CD systems:

  • NEO-MGA in the CD1 model (front loading)
  • NEO-MGA-T in the CD2 model (top loading)
  • NEO-MGA-T2 in the CDZ probably able to handle the faster CD reading speeds and the new copy protection system.)

It's used for communication between the main board and the CD module, for data transfers to the LC89515 host and for buffering CDDA data.

Pinout

1,10,15,16,18,30,41,50,59,70,81,90,110,121,130,139,150: Ground.