STMP3400
Audio Decoder with USB Interface and Voice Record
MEMORY SUPPORT
Maximum size of each memory device:
SmartMedia or NAND Flash: 256 MB
CompactFlash: 1 GB
MMC, Secure Digital: 256 MB
IDE: no maximum
STMP3400 AND SDMI 1.0 COMPLIANCE
Recording capabilities restricted to mono voice-grade
Playback and seek only occurs at “normal speeds"
Save a unique ID number to on-board or external flash with a minimum length of
–
–
128 bits, if randomly assigned or
32 bits, if uniquely assigned by an appropriate assignment authority or licensor designated by SDMI
Note: A software upgrade will be available to upgrade to SDMI 2.0 after the specification has been finalized.
PACKAGE TYPE
D
D1
D = 16 mm
D1 = 14 mm
E
E1
E = 16 mm
E1 = 14 mm
100 LQFP
SOFTWARE DETAILS
Software Included with STMP3400:
System software distributed as source code
Decoders distributed as object code
USB Driver Software for the host PC
DEVELOPMENT TOOLS INCLUDED
56K DSP design tools from Tasking which include assembler, compiler, linker, debugger, and simulator.
SigmaTel library of functions, including DAC and ADC driver, memory and LCD control, and voice recording
Command converter hardware to download code to STMP3400 for debug
Example Programs
PROGRAM CODE
Flash System is based on FAT 12. Future versions will be based on FAT 16, FAT 32 and ISO 9660 for CDROMs.
Amount of off-chip memory required for program code is 83 kbytes–185 kbytes depending on functionality. Addi-
tional program space, which varies from application to application, will be required for bitmap, text, and menu
files required for the LCD.
ADDITIONAL SUPPORT
Additional product and company information can be obtained by going to the SigmaTel website at:
www.sigmatel.com
5-3400-P1-1.0-1201
3
ETC [ ETC ]
