Southbridge

Located between the CPU (CELL BE) and the lower I/O devices (SATA/PATA: Bluray Drive/Harddrive, USB, GbLAN, Wifi/Bluetooth, Flash (Hardware): Starship2+NAND / NOR, MultiCardReader etc) via a Flex I/O bus (CellBE : BIC / IOIF1).

Chipnumbers @ SKU's

PS3 Southbridge
CXD2973GB
with heatplate

PS3 Southbridge
CXD2979GB
without heatplate

PS3 Southbridge
CXD2984AGB

PS3 Southbridge
CXD9963GB

PS3 SouthBridge
PS3 Model	Mobo Model	Mobo serial	SB Serial	part no.	Comp.ID	Notes
CEB-2030 CEB-2040	MPU-501	?	?			non-retail
DECR-1000	TMU-520	1-871-645-xx	CXD2973AGB-4		IC4001	non-retail
CECHAxx CECHBxx	COK-001	1-871-868-xx	CXD2973GB	8-753-257-50	IC3001
CECHCxx CECHExx	COK-002	1-873-513-xx	CXD2979GB	8-753-273-22	IC3002
CECHGxx	SEM-001	1-875-384-xx	CXD2984GB		IC3001
CECHHxx	DIA-001	1-875-368-xx
CECHJxx CECHKxx	DIA-002	1-876-912-xx
CECHLxx CECHMxx CECHPxx CECHQxx	VER-001	1-878-196-xx	CXD2984AGB
DECR-1400	DEB-001	1-879-845-xx	CXD2984AGB			non-retail
CECH-20xx	DYN-001	1-880-055-xx	CXD9963GB
CECH-21xx	SUR-001	1-881-945-xx
CECH-25xx	JTP-001	1-882-481-xx
CECH-25xx	JSD-001	1-882-770-xx
CECH-30xx	KTE-001	1-884-749-xx
CECH-40xx	MSX-001	1-886-928-xx
CECH-40xx	MPX-001	1-887-233-xx
CECH-43xx	REX-001

Revision	Bus ID	Name	Lv0 support	Used by
SPIDER DX (CXD2973xxx Series 39x39 pads ?)
0x010	0x01000101	DX 1.0	010.XXX+	?
0x011	0x01000102	DX 1.1	010.XXX+	?
0x020	0x01000201	DX 2.0	030.XXX+	MPU-501
0x030	0x01000301	DX 3.0	040.005+	?
0x031	0x01000302	DX 3.1	040.005+	TMU-510, COK-001
0x032	0x01000303	DX 3.2	081.003+	TMU-520
SPIDER PX (CXD2979xxx Series 31x31 pads ?)
0x110	0x02000101	PX 1.0	081.003+	COK-002 ?
0x120	0x02000102	PX 1.1	084.001+	COK-002 ?
SPIDER SX (CXD2984xxx Series 30x30 pads ?)
0x210	0x03000101	SX 1.0	081.003+	SEM-001 ?
0x220	0x03000102	SX 1.1	084.001+	DIA-001 ?
0x230	0x03000103	SX 1.2	2.45+	DIA-002 (refurbished), VER-001
SPIDER ZX (CXD9963xxx Series 22x22 pads ?)
0x310	0x04000101	ZX 1.0	2.70+	DYN-001 ?
0x320	0x04000102	ZX 1.1	2.70+	DYN-001
0x330	0x04000103	ZX 1.2	3.20+	KTE-001
Revision	Bus ID	Name	Lv0 support	Used by
STINGER
?	?	?	?	?Mambo?

Note:

Bus ID can be fetched directly from 0x24000087000 or from LV1 repository node:
- get node index (XX) with name busXX.type where value == 0x04 (SB bus)
- get value from node with name busXX.id

SuperCompanionChip - Making Optimal Use of Cell Broadband Engine: SuperCompanionChip_English.pdf / a04.pdf
Whitepaper - BCU-100 Computing Unit with Cell/B.E. and RSX: BCU-100_Whitepaper.pdf
Presentation - Super Companion Chip with Audio Visual Interface for Cell Processor : HC17.S1T3.pdf
PS3 Southbridge Serial IO Driver: sb_sio.c