PU-8

Motherboard from SCPH-1001 consoles.

PU-8 exist in two revisions :

• older version, slighty modified PU-7.

• newer version

Difference between older PU-8 and newer revision

• On older PU-8 GPU is implemented as two IC's (same as on PU-7) :

  * 160pin IC203 CXD1815Q
  * 64pin IC207 CXD2923AR

• On newer version, GPU become single 208-pin package, which is commonly seen on later boards.
• Boot ROM in 40-pin package (same as on PU-7)
• Different SPU package numbers (CXD2922BQ on older same as on PU-7, CXD2925Q on newer)
• VRAM is divided on 2 chips on older version, same as on PU-7
• 80pin SUB-CPU with MC68HC05L16 core (newer version has 52pin package with G6 revision of 68HC05), same as on PU-7
• Older PU-8 use BQ-revision of CPU (same as PU-7), newer PU-8 use CQ-revision.

Difference between PU-7 and early PU-8

• PU-7 using 100pin package CD DSP (CXD2516Q), PU-8 use 80pin package (CXD2510Q)
• PU-7 using older version of CD-controller (CXD1199BQ), PU-8 use CXD1815Q