AT75C310 Datasheet | Atmel

Features ARM7TDMI™ ARM® Thumb® Processor Core Two 16-bit Fixed-point Oak DSPCore® Cores 256 x 32-bit Boot ROM 88K Bytes of Integrated Fast RAM for Each DSP Flexible External Bus Interface with Programmable Chip Selects Dual Codec Interface Multi-level Priority, Individually Maskable, Vectored Interrupt Controller Three 16-bit Timer/Counters Additional Watchdog Timer Two USARTs with FIFO and Modem Control Lines Industry Standard Serial Peripheral Interface (SPI) Up to 23 General-purpose I/O Pins On-chip DRAM Controller JTAG Debug Interface Software Development Suites Available for ARM7TDMI and Oak DSPCore Supported by a Wide Range of Ready-to-use Application Software, including Multitasking Operating System, Networking, Modems, and Voice-processing Functions - Available in 160-lead PQFP Package - 3.3V Power Supply - - - - - - - - - - - - - - - - Description The Atmel AT75C310 Smart Internet Appliance Processor (SIAP) is a high-performance processor specially designed for Internet appliance applications, such as Internet telephony (Voice over Internet Protocol - Vo IP). The AT75C310 is built around an ARM7TDMI microcontroller core running at 20 MIPS with two DSP co-processors running at 40 MIPS each - all three processors delivering unmatched performance for low power consumption. In a typical standalone Vo IP phone, one DSP handles the voice-processing functions (voice pression, acoustic echo cancellation, etc.), while the other one deals with the telephony functions (dialing, line echo cancellation, caller ID detection, high-speed modem, etc.). In such an application, the power of the ARM7TDMI allows it to run the Vo IP protocol stack as well as all the system control tasks. Atmel provides the AT75C310 with three levels of software modules: - a special port of the Linux kernel as the proposed operating system - a prehensive set of tunable DSP algorithms for modems and voice processing, specially tailored to be run by the DSP subsystems - a broad range of application-lev...