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PS4 southbridge contains two processors named EMC and EAP | PS4 southbridge contains two processors named EMC and EAP that are mainly used on boot, during rest mode and for servicing. | ||
= | = Southbridge processors = | ||
== EMC == | |||
EMC could stand for External Micro Controller. EMC was named MediaCon by some people when its name was still unknown. | EMC could stand for External Micro Controller. EMC was named MediaCon by some people when its name was still unknown. | ||
The role of EMC is to load EMC | The role of EMC is to load EMC IPL and EAP kernel, to be an interface for icc for the main [[APU]] kernel and [[Syscon]] and to offer a debug interface via UART that does not rely on [[Syscon]] or main APU. EMC runs its own FreeBSD kernel. It is a Marvell Armada, an ARM-based SoC. Sony stuck a [[PCIe]] bridge on it. It exposes ARM peripherals to the x86 side. There is some extra stuff (e.g. HPET, ACPI stuff). | ||
EMC cpuid = 412FC231 (ARM Cortex-M3 r2p1) | EMC cpuid = 412FC231 (ARM Cortex-M3 r2p1) | ||
== | == EAP == | ||
EAP could stand for External Application Processor. | |||
The role of EAP is to handle media (online [[Wireless]]/[[GbLAN]], [[Bluray Drive]] and [[Harddrive]]) even in standby mode. EAP runs its own FreeBSD kernel in standby mode, activated to handle tasks such as downloading updates while the PS4 is in standby. | |||
= Components = | |||
The | The Southbridge is connected to the main [[APU]] by [http://en.wikipedia.org/wiki/PCI_Express#Pinout PCI_Express x4] and to [[Syscon]] by SPI. | ||
It handles several tasks to offload the [[APU]]: | It handles several tasks to offload the main processor/[[APU]]: | ||
* Network connections | * Network connections ([[Wireless]] and [[GbLAN]], including background downloading -> [[PlayGo]] | ||
* File handling ([[Bluray Drive]], [[Harddrive]] and [[USB 3.0]]), including background caching | * File handling ([[Bluray Drive]], [[Harddrive]] and [[USB 3.0]]), including background caching | ||
* Main serial flash handling | * Main serial flash handling | ||
It is connected to its own Samsung 256MB DDR3 SDRAM ("sbram" for SouthBridge RAM) [[K4B2G1646E-BCK0]], the main serial flash [[MX25L25635FMI-10G]], SATA bridge [[MB86C311B]] and [[GbLAN]] controller [[88EC060-NN82]] etc. See also [[:File:PS4_-_SAA-001_diagram.png]]/ | |||
[[ | |||
= Southbridge revisions = | = Southbridge revisions = | ||
There are three major hardware revisions | There are three major hardware revisions, named Aeolia, Belize and Baikal. | ||
See also [[Aeolia]]. | See also [[Aeolia]]. | ||
== Southbridge revisions per chassis == | == Southbridge revisions per chassis == | ||
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{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|- | |- | ||
! Model (chassis) !! Motherboards !! Southbridge Codename !! | ! Model (chassis) !! Motherboards !! Southbridge Codename !! Southbridge Labeling | ||
|- | |- | ||
| D1000 || All CVN || Aeolia || | | D1000 || All CVN || Aeolia || CXD90025G | ||
|- | |- | ||
| 1000 || All SAA || Aeolia || | | 1000 || All SAA || Aeolia || CXD90025G | ||
|- | |- | ||
| 1100 || All SAB || Aeolia || | | 1100 || All SAB || Aeolia || CXD90025G | ||
|- | |- | ||
| 1200 || All SAC || Belize || | | 1200 || All SAC || Belize || CXD90036G | ||
|- | |- | ||
| 2000 || SAD | | 2000 || All SAD || Belize || CXD90036G | ||
|- | |- | ||
| | | D7000 || All HAC || Belize || CXD90036G | ||
|- | |- | ||
| | | 2100 || Some SAE || Belize 2 || CXD90046GG | ||
|- | |- | ||
| | | 7000 || All NVA || Belize 2 || CXD90046GG | ||
|- | |- | ||
| | | 2200 || Some SAE, all SAF || Baikal || CXD90042GG | ||
|- | |- | ||
| | | 7100 || All NVB || Baikal || CXD90042GG | ||
|- | |- | ||
| 7200 || All NVG || Baikal || CXD90042GG | |||
| 7200 || NVG | |||
|} | |} | ||
= | == Motherboards per southbridge revisions == | ||
{| class="wikitable sortable" | |||
{| class="wikitable" | |||
|- | |- | ||
! Southbridge Codename !! Southbridge Labeling !! Motherboards | |||
|- | |- | ||
| | | Aeolia || CXD90025G || | ||
CVN-K12 <br> | |||
SAA-001 <br> | |||
SAB-001 | |||
|- | |- | ||
| | | Belize || CXD90036G || | ||
HAC-001 <br> | |||
NVA-001 <br> | |||
SAC-001 <br> | |||
SAD-001 <br> | |||
SAD-003 | |||
< | |||
|- | |- | ||
| | | Belize 2 || CXD90046GG || | ||
NVA-001 <br> | |||
NVB-003 <br> | |||
NVG-001 <br> | |||
SAE-001 <br> | |||
SAF-005 | |||
| | |||
| | |||
|- | |- | ||
| Baikal || CXD90042GG || | |||
NVB-004 <br> | |||
SAD-002 <br> | |||
SAE-002 <br> | |||
SAE-003 <br> | |||
SAE-004 <br> | |||
SAF-003 <br> | |||
SAF-004 | |||
|} | |} | ||
{{Motherboard Components}} | {{Motherboard Components}} | ||
<noinclude> | <noinclude>[[Category:Main]]</noinclude> | ||
[[Category:Main]] | |||
</noinclude> |