NAMC-ADSP with 8 or 16 Blackfin DSPs

AdvancedMC (AMC) CPU board for high performance voice or data processing

The NAMC-ADSP is a multi-purpose (tele-)communication resource board in the AdvancedMC or AMC (Advanced Mezzanine Card) form factor, featuring either 8 or 16 Blackfin DSPs from Analog Devices.

The NAMC-ADSP is targeted at applications in communications environments with a need for high performance voice or data processing. The module is designed to process standard telecom algorithms, such as voice and data compression and decompression or DTMF detection and generation. The NAMC-ADSP is suitable for any voice/data application in any signaling or VoP solution such as in ISDN, SS7, ATM, VoIP, I-TDM, TDM, 3G or 4G environments.

The module is capable of handling individual timeslots transmitted via the I-TDM protocol over a Gigabit Ethernet backplane . The design is optimized for handling as many timeslots (TDM data) in parallel as possible. The TDM data streams are supplied by a standard I-TDM backplane interface located on port 0 and port 1 (redundant configuration) or port 8 of the AMC connector.


Key features
Technical details
Block diagram
Order code
  • NAMC-16ADSP: single-width, mid- or full-size AMC module
  • Local bus and on-board devices directly connected to the backplane via PCIe-X1 lane

Backplane I-TDM Access
  • TSI (Time Slot Interchanger) and TDM-to-I-TDM bridge are incorporated in a ECP2M50 FPGA from Lattice
  • Flexible routing and multi-casting of 64kbps timeslots between the various DSPs (TSI)
  • Conversion of TDM-oriented bit stream into Ethernet packets and vice-versa via TDM-to-iTDM bridge
  • Sending and receiving of Ethernet packets via a 1000BaseT-BX Ethernet interface
  • Each DSP handles up to 256 bidirectional TDM channels
  • Up to 4096 timeslots of 64kbps bandwidth

DSP Resources
  • NAMC-ADSP-8: eight ADSP-BF535P Blackfin CPUs from Analog Devices
  • NAMC-ADSP-16: sixteen ADSP-BF535P Blackfin CPUs
  • 32MB individual SDRAM
  • 1MB individual FLASH
  • Blackfin DSP core frequency: 350MHz
  • Blackfin DSP: 700 MMACs (max.) and 3.5MIPS per TDM channel
PCIe Interface and Compliance
  • x1 lane to port 4
  • PICMG AMC.1 R1.0

GbE Interface and Compliance
  • GbE on port 0 and 1

IPMI and Compliance
  • PICMG AMC.0 R2.0
  • PICMG 2.9 R1.0


4096 bidirectional I-TDM channels connecting to the DSP's serial ports

  • ADSP-BF535P Blackfin DSPs from Analog Devices, 350MHz core frequency, 700 MMACS, 3.5MIPS per TDM channel,
  • 8 pcs ADSP (NAMC-ADSP-8),
  • 16 pcs ADSP (NAMC-ADSP-16)

  • 32 MB SDRAM and 1MB FLASH per DSP

Indicator LEDs
  • 16 software programmable LEDs (1 status indicator LED per DSP) on the front panel

  • TCLK A-D as input supported
  • FCLKA or local 100MHz osc. as fabric reference clock

Host Operating System Support
  • OK-1, VxWorks, LINUX, dependent on application

Power Consumption
  • 3.3V MP 0.1A (typ.)
  • 12V 1.1A (typ.) (NAMC-ADSP-8)
  • 12V 2.0A (typ.) (NAMC-ADSP-16)

  • Temperature (operating): 0ºC to +60ºC with forced air cooling
  • Temperature (storage): -40ºC to +85ºC
  • Relative Humidity: 10% to 90% at +55ºC (non-condensing)

  • Voice and data compression and decompression
  • Voice and data encryption and decryption
  • DTMF detection and generation
  • VoP
  • Special handling of signalling protocols (i.e. SS7, 3G TFO, etc.)
Rev #
Date Last Modified
namc_adsp_ds Data Sheet pdf 282 KB 1.0 11-07-2012

NAMC-ADSP block diagram

Product Code: NAMC-ADSP - [Option]

-8 NAMC-ADSP board equipped with 8 Blackfine DSP processors -
-16 NAMC-ADSP board equipped with 16 Blackfine DSP processors -