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== Overview ==
== Overview ==
Sound processor of the PS2. Is connected to or contains (depending on revision) 2 MB of EDO-RAM.
Sound processor of the PS2. Is connected to or contains (depending on revision) 2 MB EDO-RAM.
 
Current versions of PS2ident misidentify some of these, e.g. CXD2942AR/CXD2942BR/CXD2950R will be identified as a non-existent CXD2947AR.


== Revisions ==
== Revisions ==
* CXD2942R (GH-001, GH-003, GH-008)
* ??
* CXD2942AR (GH-004, GH-005, GH-006, GH-007, GH-008, GH-010, GH-012, GH-013, GH-014)
* CXD2942AR
** [[File:6dg0Nsh.jpg|200px]]
** <imgur w=480>6dg0Nsh.jpg</imgur>
* CXD2942BR (GH-010, GH-012, GH-013, GH-014)
* ??
* CXD2950R (GH-013, GH-015, GH-016)
* CXD2947R (GH-017, GH-018, GH-019, GH-022, GH-023, GH-036, GH-037, GH-040, GH-041, GH-051, GH-052, XPD-001, XPD-005)
** SPU2-RAM moved into SPU2 itself; no external SPU2-RAM
* CXD2955R (GH-026, GH-027, GH-029, GH-032, GH-035)
** Additionally also includes functionality of [[SSBUS controller]]
 
Starting with GH-026, the SSBUS controller and the SPU2 were combined into a single chip (CXD2955R), until the SSBUS controller functionality ultimately became obsolete with the introduction of the L-chassis (SCPH-750XX, GH-036 and newer), which is why GH-036 and newer include the CXD2947R again.
Starting with GH-061, the SPU2 was integrated into the new main SoC ([[Emotion Engine#Revisions|CXD2976GB]]) and does not exist as a dedicated IC anymore.
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