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Home > Products > Hardware > PC104 > SigC67xx-PC/104

SigC67xx-PC/104 Multiple Processor DSP and I/O Card

Click to see full size image
Board shown above with one (1) SigC6711-SODIMM
4 processors module installed, and
4-channel audio module installed (underside).
Click here for more detailed pictures.

SigC67xx-PC/104 board with the SigC67xx-SODIMM
module partly installed. --
Click here to view larger image
SigC67xx-SODIMM module mechanical outline
shown above. Each SigC67xx module contains
up to 4 processors (two per side). See below for
data sheet containing detailed mechanical drawings.


The SigC67xx-PC/104 card uses a modular approach to provide up to 5 GFLOPS in a single PC/104 form-factor footprint. The card accepts off-the-shelf processor modules with Texas Instruments C67xx DSPs and 16-bit audio and speech I/O modules, and custom modules, for example H.110 or MVIP subset. It is well suited for embedded defense electronics, telecom and Internet infrastructure applications where space is at a premium

Applications for the SigC67xx-PC/104 card include radar and sonar processing, high precision FFT, wavelet, and other transform processing, base-station processing, VoIP (voice-over Internet protocol) networking functions, VoDSL (voice-over DSL), Internet routing, multiple-channel speech or audio code / decode (e.g. G.729A or MELP speech compression and MP3 audio compression), modem banks, echo cancellation, and speech recognition..

The modular approach used by the SigC67xx-PC/104 card is particularly well suited to providing a scalable solution for defense electronics, telecom, and Internet equipment applications that require parallel DSP processing. For example, channel capacity is highly configurable.

The SigC67xx-PC/104 card is a PC/104 format board, fully compliant with PC/104 specification v2.3 in dimensions and mechanical considerations.

SigC67xx-PC/104 Feature Summary

Application example of SigC67xx-PC/104 card and enclosure. Click to see blow-up picture and captions. Click here for more detailed pictures.

Specifications and Data Sheets

Telephony T1/E1 Interface

The SigC67xx-PC/104 contains a Dallas Semiconductor DS2155 device with integrated framer/transceiver that provides a T1/E1 interface available on a 10-pin header at the board edge. Up to 24 data streams and 8 signalling streams can be processed by any combination of DSPs. Command, control, and status information is available to the host interface, and all TDM data is routed to the DSP module sites, via the programmable PLD switch matrix.

For non-telecom applications, the T1/E1 interface does not need to be populated and board cost is reduced.

Analog I/O

Combined with SigC67xx processor modules, the SigSD4-SODIMM Audio Module offers multichannel 16-bit sigma-delta analog I/O as an integrated component in the modular solution. Audio Module features include:

Network Interface

The Rev. D SigC67xx-PC/104 board contains a 10/100 Mbps Ethernet controller with PHY signals available on a header at the board edge. Rev. C boards do not contain the Ethernet controller. For VoIP applications, Packet data may be output to the network from DSPs after speech codec, RTP, and jitter processing. The Ethernet controller is accessible from both host and DSPs

Serial I/O Interface

The SigC67xx-PC/104 card provides four (4) synchronous serial channels and two (2) RS-232 asynchronous serial channels. All serial I/O signals are available at board edge; routing is software-programmable and levels are software-programmable for either RS-422 or RS-423 (balanced or unbalanced).

Stand-Alone Operation Option

The SigC67xx-PC/104 contains a 1M x 8 FLASH EEPROM device site for storage of boot code and nonvolatile application data.

SigC67xx-PC/104 Software Support

The SigC67xx-PC/104 card, as well as other C67xx platforms such as the Texas Instruments DSK C5402 board, are supported by Signalogic off-the-shelf DSP software products designed for DSP-based real-time processing and C67xx DSP code development, including: Note that if the SigC67xx-PC/104 board is used as a development system or in development mode, it must be plugged into a passive carrier card.