Difference between revisions of "S5L8700 datasheet"
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| − | The datasheet for the S5L8700X series can be downloaded [http://rapidshare.com/files/101234522/S5L8700X-DS.pdf.html here], but I (cmwslw) will try to get it hosted on my site soon. The datasheet describes every pin (page 1-5) and instruction (page 3-1) in detail. The pin locations described in the datasheet are not the actual locations for the [http://www.samsung.com/global/business/semiconductor/support/PackageInformation/downloads/SystemLSI/FBGA/232_FBGA_1010_12_05.pdf 232-pin FBGA] version. The FBGA version pin locations can be found [http://www.meizume.com/rockbox/5797-technical-information-s5l8700x07-sip.html here], respectively. We need someone to lift the processor off the board to verify the pin layout and examine the traces below the chip. Perhaps we could use the 2G tof used when he extracted the utility flash? We could use the datasheet to find the locations of the JTAG pins, but finding where the traces go would be very challenging and require a high-res X-ray of the board. If we could use the datasheet to find a way of reading the 50KB embedded ROM, we would be able to figure out how the firmware is decrypted. | + | The datasheet for the S5L8700X series can be downloaded [http://rapidshare.com/files/101234522/S5L8700X-DS.pdf.html here], but I (cmwslw) will try to get it hosted on my site soon. It matches the [http://www.samsung.com/global/business/semiconductor/productInfo.do?fmly_id=136&partnum=K4M56163PG official Samsung 8700 info page]. The datasheet describes every pin (page 1-5) and instruction (page 3-1) in detail. The pin locations described in the datasheet are not the actual locations for the [http://www.samsung.com/global/business/semiconductor/support/PackageInformation/downloads/SystemLSI/FBGA/232_FBGA_1010_12_05.pdf 232-pin FBGA] version. The FBGA version pin locations can be found [http://www.meizume.com/rockbox/5797-technical-information-s5l8700x07-sip.html here], respectively. We need someone to lift the processor off the board to verify the pin layout and examine the traces below the chip. Perhaps we could use the 2G tof used when he extracted the utility flash? We could use the datasheet to find the locations of the JTAG pins, but finding where the traces go would be very challenging and require a high-res X-ray of the board. If we could use the datasheet to find a way of reading the 50KB embedded ROM, we would be able to figure out how the firmware is decrypted. |
A poster on the thread previously mentioned claimed that [http://f4eru.free.fr/SOC%20FBGA%20pins.pdf this] was the actual pin layout of the Nano 2G. | A poster on the thread previously mentioned claimed that [http://f4eru.free.fr/SOC%20FBGA%20pins.pdf this] was the actual pin layout of the Nano 2G. | ||
==Helpful pages== | ==Helpful pages== | ||
http://www.rockbox.org/twiki/bin/view/Main/SamsungSA58#SA58700_codename_Blues | http://www.rockbox.org/twiki/bin/view/Main/SamsungSA58#SA58700_codename_Blues | ||
Revision as of 22:24, 26 March 2009
The datasheet for the S5L8700X series can be downloaded here, but I (cmwslw) will try to get it hosted on my site soon. It matches the official Samsung 8700 info page. The datasheet describes every pin (page 1-5) and instruction (page 3-1) in detail. The pin locations described in the datasheet are not the actual locations for the 232-pin FBGA version. The FBGA version pin locations can be found here, respectively. We need someone to lift the processor off the board to verify the pin layout and examine the traces below the chip. Perhaps we could use the 2G tof used when he extracted the utility flash? We could use the datasheet to find the locations of the JTAG pins, but finding where the traces go would be very challenging and require a high-res X-ray of the board. If we could use the datasheet to find a way of reading the 50KB embedded ROM, we would be able to figure out how the firmware is decrypted.
A poster on the thread previously mentioned claimed that this was the actual pin layout of the Nano 2G.
Helpful pages
http://www.rockbox.org/twiki/bin/view/Main/SamsungSA58#SA58700_codename_Blues
