PS2 Compatibility

PS2-Compatibility

Early PS3 FAT CECHA/COK-001 and CECHB/COK-001 : Full compatibility with GS+EE and Rambus memory. Later CECHC/COK-002 had instead of GS+EE a single GS and lacked the Rambus memory.

PS2 Hardware

PS2 EE/GS and PS2 GS

IC7004, (PS2 EE/GS)
Productcode: Sony CXD9833GB
PartNo.: 8-753-227-14
BALL-GRID-ARRAY overview CPU view
facing BGA A1 marker:northeast/topright

IC7004, (PS2 EE/GS)
Productcode: Sony CXD9833GB
PartNo.: 8-753-227-14
BALL-GRID-ARRAY overview PCB view
facing BGA A1 marker:northwest/topleft

Sony CXD2953AGB (PS2 EE/GS)

Used on PS3 FAT CECHA/COK-001 and CECHB/COK-001
http://www.ps3devwiki.com/index.php?title=File:SCEI_CXD2953AGB.JPG

Sony CXD9833GB (PS2 EE/GS)

8-753-227-14 / IC7004
http://www.ps3devwiki.com/index.php?title=File:CXD9833GB.png

BGA 536 (32x32 minus 22*22 center square minus 4 cornerpads)
pitch : 0.76mm

Sony CXD2972GB (PS2 GS)

Used on PS3 FAT CECHC/COK-002
http://www.ps3devwiki.com/index.php?title=File:CXD2972GB.JPG

PS2 Rambus 32MB memory

54-ball FBGA
Samsung K4R271669F / K4R271669H
Rambus

The earlier models with hardware PS2 compatibility also contained an extra 32MB of RDRAM using two 16MB Samsung chips.

Type	Size	Speed	Voltage	Packaging	Manufacturer	Serial Number	Description
RDRAM	16MB	800MHz	2.50 +/- 0.13V	54-pin	Samsung	K4R271669F	32MB total (2 chips) PS2 HW BC
RDRAM	16MB	800MHz	2.50 +/- 0.13V	54-pin	Samsung	K4R271669H	32MB total (2 chips) PS2 HW BC

Samsung K4R271669F / K4R271669H (PS2 Rambus 800MHz 16MB 2.5V FBGA54 - 2x)

Used on PS3 FAT CECHA/COK-001 and CECHB/COK-001
Datasheet: ds_k4r271669h_rev10.pdf
http://www.ps3devwiki.com/index.php?title=File:K4R271669F.png

PS2 bridgechip

Sony CXD9208GP2 (PS2 ?)

6-710-433-01 / IC7301
Used on PS3 FAT CECHA/COK-001 and CECHB/COK-001
Unknown bridge chip from EE+GS to the CXM4024R (see MultiAV) and the RSX
http://www.ps3devwiki.com/index.php?title=File:SCEI_CXD9208GP.JPG

PS2 Software

Mountpoints:

• dev_ps2disc
• dev_ps2disc1

Name	Auth ID	Self (/dev_flash/ps2emu)	Notes
PS2_LPAR	0x1020000003000001	ps2_emu.self
*SCE_CELLOS_SYSTEM_MGR_PS2	0x107000001D000001
PS2_GX_LPAR	0x1020000003000001	ps2_gxemu.self
*SCE_CELLOS_SYSTEM_MGR_PS2_GX	0x107000001D000001
PS2_SW_LPAR	0x1020000003000001	ps2_softemu.self
*SCE_CELLOS_SYSTEM_MGR_PS2_SW	0x107000001D000001

PS2_GX
Core	Job	Source	Notes
SPU0	IOP	SPU ASM
SPU1	DMA	SPU ASM
SPU2	VU1	SPU ASM
SPU3	IPU	SPU ASM
SPU4	GFIF	SPU ASM
SPU5	PS2-SPU2	C++	about 50% load average
SPU6	-	-	Isolation
SPU7	-	-	Unavailable: Factory disabled SPU
PPU:0	PS2-Devices	C++ and PPU ASM
PPU:1	Emotion Engine	C++ and PPU ASM
PS2-GS	Graphic Synthesizer	Hardware PS2-GS	Present in CECHC/COK-002
PS2 (GS+EE)
Core	Job	Source	Notes
SPU0	IOP	SPU ASM
-	DMA	Hardware PS2-EE
-	VU1	Hardware PS2-EE
-	IPU	Hardware PS2-EE
-	GFIF	Hardware PS2-EE
SPU5	PS2-SPU2	C++	about 50% load average
SPU6	-	-	Isolation
SPU7	-	-	Unavailable: Factory disabled SPU
PPU:0	PS2-Devices	C++ and PPU ASM
PPU:1	-	-	unused?
PS2-EE	Emotion Engine	Hardware PS2-EE	Present in CECHA/COK-001 and CECHB/COK-001
PS2-GS	Graphic Synthesizer	Hardware PS2-GS	Present in CECHA/COK-001 and CECHB/COK-001
PS2 Software
problematic, see Mathieulh quoted below The main issue here is that it's mostly not doable to emulate the GS efficiently with the rest of the hardware because the RSX is just not meant for this task and cannot emulate the GS on its own while all the available SPUs and the PPU are already mostly fully used to emulate the rest of the playstation 2 hardware, this explains why sony never could finish the ps2_softemu and that it reached a stalling step. I honestly have no idea on how it would be possible to get over the ps3 hardware limitations to perform a full ps2 emulation without any of the ps2 hardware present on the console, one thing for sure is that the emulator would have to be entirely rewritten and optimized like no other ps3 software has been.