Configuring the Modem

wire, half-duplex mode (SW3-7 ON), the modem squelches the receiver after RTS is turned off to prevent far-end echoes from causing data errors. The duration that the modem squelches the receiver is either:

™8 milliseconds if the modem is configured for Bell 202 mode (SW2-1 OFF)

™150 milliseconds if the modem is configured for ITU-T V.23 mode (SW2-1 ON)

SW2-3 FSK Soft Carrier (Bell 202 FSK Mode Only)

SW2-3 ON = None

OFF = 8ms

SW2-3 controls the soft carrier and is valid for Bell 202 FSK mode only (SW2-1 set to OFF). Setting this switch to OFF configures the modem to transmit a 900 Hz soft carrier to the remote modem for 8 milliseconds after RTS is turned off. Setting this switch to ON prevents the modem from transmitting a soft carrier after RTS is turned off.

SW2-4 and SW2-5 RTS-CTS Delay (Bell 202 Mode Only)

Switches SW2-4 and SW2-5 determine the duration of the RTS-CTS delay in Bell 202 mode. Table 2-4 shows how to set these switches to select the appropriate setting.

Table 2-4. RTS-CTS Delay Settings in Bell 202 Mode

 

 

 

To Select

Set SW2-4 to…

And Set SW2-5 to…

a Delay of…

 

 

8ms

OFF

OFF

 

 

 

33ms

OFF

ON

 

 

 

59ms

ON

OFF

 

 

 

219ms

ON

ON

 

 

 

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Delta DSP9612 manual SW2-3  FSK Soft Carrier Bell 202 FSK Mode Only

DSP9612 specifications

The Delta DSP9612 is a powerful digital signal processor that has gained attention in various fields, particularly in audio processing, telecommunications, and embedded systems. With a focus on performance and efficiency, the DSP9612 offers a combination of advanced features and technologies that cater to the demands of modern applications.

One of the main features of the Delta DSP9612 is its high-performance architecture. It supports a range of data types, including fixed-point and floating-point formats, which enables it to efficiently handle complex algorithms and high-speed processing requirements. The DSP operates at clock speeds of up to 300 MHz, allowing for rapid execution of mathematical operations, making it ideal for real-time applications.

Another significant characteristic of the DSP9612 is its versatility. The processor is designed to support multiple communication interfaces, including I2C, SPI, and UART, which facilitates easy integration with various peripherals and systems. This flexibility is a key advantage for developers looking to create custom solutions tailored to specific needs.

The Delta DSP9612 also boasts an advanced memory architecture that enhances data access speed. It features both on-chip and off-chip memory options, accommodating the storage requirements of complex algorithms while minimizing latency during data processing. With ample RAM and flash memory options, developers can efficiently manage data-intensive tasks without compromising performance.

Moreover, the DSP9612 incorporates numerous built-in digital signal processing functions. These include filters, FFT (Fast Fourier Transform) algorithms, and audio codecs, which are essential for audio signal manipulation and enhancement. This built-in functionality reduces the need for additional external components, simplifying system design and lowering overall costs.

The Delta DSP9612 is optimized for low power consumption, making it suitable for battery-operated devices and applications where energy efficiency is a priority. Its power management features help to extend the operational life of devices while maintaining peak performance.

In summary, the Delta DSP9612 stands out in the digital signal processing landscape due to its high-performance architecture, versatility, advanced memory capabilities, built-in DSP functions, and low power consumption. As technology continues to evolve, the DSP9612 remains a reliable choice for developers seeking robust and efficient solutions in audio processing, telecommunications, and embedded systems.