ADSP-21MOD980N

a Preliminary Technical Data PERFORMANCE FEATURES Complete Single Device Multi-Port Internet Gateway Processor (No External Memory Required) Implements Sixteen Modem Channels or Forty Voice Channels in One Package Each DSP Can Implement two V.34/V.90 Data/Fax Modem Channels (includes Datapump and Controller) Low Power Version: 640 MIPS Sustained Performance, 12.5 ns Instruction Time @ 1.9 Volts nominal (internal) Open Architecture Extensible to Voice-over-Network (VoN) and Other Applications Low Power Dissipation, 25 mW (typical) per Channel Powerdown Mode Featuring Low CMOS Standby Power Dissipation MultiPort Internet Gateway Processor ADSP-21mod980N INTEGRATION FEATURES ADSP-2100 Family Code-Compatible, with Instruction Set Extensions 16 Mbits of On-Chip SRAM, Configured as 9 Mbits of Program Memory and 7 Mbits of Data Memory Dual-Purpose Program Memory, for Both Instruction and Data Storage 352-Ball PBGA with a 35mm ؋ 35mm footprint SYSTEM CONFIGURATION FEATURES 16-Bit Internal DMA Port for High-Speed Access to On-Chip Memory (Mode-Selectable) Programmable Multichannel Serial Port Supports 24/32 Channels Two Double-Buffered Serial Ports with Companding Hardware and Automatic Data Buffering Separate Reset Pins for Each Internal Processor 21m od980N Host IDMA SPORT0 SPORT1 2188N DSP 1 2188N DSP 2 2188N DSP 3 2188N DSP 4 2188N DSP 5 2188N DSP 6 2188N DSP 7 2188N DSP 8 CONTROL Figure 1. MOD980N MultiPort Internet Gateway Processor Block Diagram REV. PrB 6/2001 Thi...