https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
TMS320DM355 Digital Media System-on-Chip (DMSoC)

TMS320DM355 Digital Media System-on-Chip (DMSoC)

Texas Instruments Incorporated.
Region: China
Update: 03/06/2009
Key Specifications
* ARM926EJ-S Core
* ARM9 Memory Architecture
* MPEG4/JPEG Coprocessor
* Video Processing Subsystem
* External Memory Interfaces (EMIFs)
* Flash Memory Interfaces
* Flash Card Interfaces
* One 64-Bit Watch Dog Timer
* Four Pulse Width Modulator (PWM) Outputs
* Four RTO (Real Time Out) Outputs
* Configurable Power-Saving Modes
* 90nm Process Technology
* 3.3-V and 1.8-V I/O, 1.3-V Internal
* Flexible PLL Clock Generators
https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions