Texas Instruments TMS320 Series

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DA255

DA255 is the TMS320 derivative used in the Creative Zen Touch and possibly other Creative / Dell DJ devices. The exact specifics of this variant (which is presumably a custom variant for Creative) are not fully known, but it is known that these are ARM processors with a C55x core. The entire tag on one chip reads "TMS320 DA255GHH? 4A-4AAFDEW". Unfortunately, Texas Instruments only gives the documentation out after signing a TI NDA.

Forum post on Nomadness

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DM320

DM320 is the common short name for the Texas Instruments microcontroller equipped with an ARM926EJ-S core and a TMS320vc5409 DSP.

• Creative Zen Vision:M > TI TMS320DM320? + codec Texas Instruments TI TLV320AIC23B - CreativeZVMPort
• Cowon A2 > TI TMS320DM320? + Wolfson WM8750 - iAudiophile thread, Source Code
• Archos AV500 > TI TMS320DM320? + codec Micronas MAS3587F?
• The next-generation Neuros-players, source
• Archos Gmini 402(cc) - see ArchOpen
• Olympus m:robe MR500i Wiki w/ Dev info - OlympusMR500Info
• iriver V10 - Info from CeBIT 2006
• SanDisk Sansa Connect - SansaConnect

TMS320DSC24 Data Manual (similar to the TMS320DM320?)

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DM270

The predecessor Texas Instruments DM270 has an ARM7TDMI? 88mhz core and the same TMS320vc5409 DSP.

• Mobinote DVX-Pod 7010
• Sony HMP-A1
• Lyra RD2780
• iriver PMP media player, PMP internals, source code
• Archos Gmini 400 (see ArchOpen)
• Archos AV400 series > TMS320DM? 270 + codec Micronas MAS3587F? - ArchOpen
• neoSOLCN-2210
• SCAM SV10

Some info taken from this ingenient presentation.

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DSC25

The Archos AV3x0 and AV1x0 players use the TMS320DSC25 (ARM7TDMI? core) model:

• ArchosAV100Port
• Archos AV3x0 HW overview, ArchosAv300Port

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Further Reading and Notes

Wikipedia on the TMS320 chip family
TMS320 ARM/DSP bridge
TMS320 C5xx information
Some info taken from this Polish mp3store thread.

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