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1.0 GB (actually 1 million bytes)
I cracked my M250 open to see what hardware is used:Main processor/"System on Chip" (SOC): Telechips TCC 770www.telechips.comCouldn't get any detailed info, their website requires a logon just to see the datasheet. Possibly because they are in the process of being sued by SigmaTel for patent infringement. I emailed asking how to get a software developer's kit, but don't expect an answer. They are not set up to sell product into the USA. Anyone have a friend in Hong Kong that would front for me in getting one ?Anyway, here's the info I COULD find:TCC77x Series are system LSI for digital audio player based on the ARM946E-S, ARM'sproprietary 32-bit RISC CPU core.it can decode and encode MP3 or other types of audio/voice compression/ decompression standards by software based architechure. The on-chip USB 2.0 compliant controller enables the data transmission between a personal computer and storage device such as NAND flash, HDD, SD,MMC etc.ApplicationsPortable MP3 player (WMDRM10)Mobile MP3 phoneJuke Box (Audio & Photo)Portable MP3 KaraokeDigital Internet Radio ServerElectronic DictionaryPersonal Multimedia Player (Audio/Image/Video)Multimedia Storage DeviceSDKProvides Reference Solution including H/W and S/WProvides World-first proven JANUS DRM(WMDRM 10 - PD) SolutionSupports various Audio & Video codecMP3 decoding/encodingWMA decoding/encodingOGG decodingADPCM decoding/encodingJPEG decodingMPEG4-SP decodingSupports MSC (Mass Storage Class) & MTP (Media Transfer Protocol)Supports Meta-data BrowsingFeaturesARM946E-S CPU core (4KB cache, up to 120MHz), 0.13um process- Core : 1.1V ~ 1.3V, I/O : 1.8V ~ 3.3V4K bytes of internal boot ROM with various boot procedure (NAND, UART, USB, EHI) and security64K bytes of internal SRAM for general usage4K bytes of data TCM (Tightly Coupled Memory) for fast data accessOn-chip peripherals- USB2.0 Device / USB1.1 Host- ECC generator for SLC and MLC NAND Flash- General purpose 8 channel 10-bit ADC- RTC (Real Time Clock) for battery backup- EHI (External Host Interface) for parallel host interfaceDedicated Memory Interfaces: SD ,MMC, SLC / MLC NAND Flash , IDE I/F for HDDEmbedded 8Mbit Nor Flash ,16Mbit SDRAM, High Performance Audio Codec OptionsBesides the Telechips part, here are the other main chunks of silicon:TI TLV320AIC23B Stereo codec and headphone amp (not sure why this is needed, as the telechips supposedly has the codec built in? Maybe just for the headphone amp)ESMT M12S16161A 1M X 16 DRAMFlash is Samsung... I didn't bother with the chip IDsPhilips TEA5767 FM radioand a couple I was unable to track down from the markings:59TIAIPandAZ-76VOB..... and, yes, I got it back together and working perfectly
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