yet another PlayStationPortable Documentation

3  Hardware Overview


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3.1  Mainboard


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3.1.1  Revisions


3.1.1.1   TA-079   Flash/SDRAM: K5E5658HCM-D060 (3.0V/2.5V) images/TA-079-3a.jpg3.1.1.2   TA-080   3.1.1.3   TA-081   3.1.1.4   TA-082   CPU Core : CXD2967GG Media Engine : CXD5026-203GG Flash/SDRAM: K5E5658ACM-D060 (1.8V/1.8V) images/PSP-ta082.jpg You can identify this Motherboard by opening the UMD door and looking for the IC1003 label: images/TA-082-3b.jpg3.1.1.5   TA-086   CPU Core : CXD2967GG Media Engine : CXD5026-203GG MCP : K5E5658ACM-D060 1.8V/1.8V images/TA-086small.png
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3.1.2  Semiconductors


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3.1.3  other


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3.2  WIFI Daughterboard


The WIFI module is mounted on the underside of the SIRCS / Memory Stick daughterboard. It appears to be a complete self-contained module built on its own PC board. It is completely covered by an aluminum shield which is embossed with the MAC address and several other numerical codes, including the apparent part number: SWU-BXJ154N. It also says "Sony Corporation, Made In China."
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3.2.1  Semiconductors


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3.3  Headphones/Remote Control


The headphone jack is a standard 3.5mm stereo, but there is also a small 6 pin connector next to it for the "remote control" that is included in the Value Pack. If we assume the following pin numbering (socket in the PSP as viewed from the outside): images/remocon.png

Then the pinout is as follows (tip/ring/sleeve refers to the three parts of the stereo jack)

Pin Wire color Function
1 Brown ? Shield ? (GND) - (unused by standard Remote/Headphones)
2 Blue Digital ground (GND)
3 Orange TXD
4 Green Sense? (+2.5V, seems to be controlled by PSP) - (unused by standard Remote/Headphones)
5 Yellow +2.5V (0V when Plug isnt inserted) *1
6 Grey RXD
Tip Pink Left audio (plus 600mv DC BIAS)
Ring Red Right audio
Sleeve Black Audio ground (GND)
 
 
*1) If a jack is plugged in and the PSP is on standby, the 2.5V output is always active, regardless of whether the external device replies to potential PSP queries or not (see below). In other words, when the PSP is on standby, external power is applied indefinitely to any remote device. This is done so the PSP may be woken up using a PLAY command(0x0001) over the serial bus.

If a jack is plugged in and the PSP is turned on, things become interesting:
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3.4  Memory Stick


images/mstick_10p.png

Pin Signal Description
1 VSS  
2 BS IN, Serial protocol bus state signal
3 VCC IN
4 DIO IN/OUT, Serial protocol data signal
5   unused/reserved
6 INS Stick insertion/extraction detect
7   unused/reserved
8 SCLK IN, Serial protocol clock signal
9 VCC  
10 VSS  

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3.5  Talkman Microphone


The circuit board contains three ICs and several smaller 4 or 6-terminal devices:
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