| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact |
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PAL20R8B Datasheet NOTES; 1. Tol*ranw on_3,plap* d*cimails,_+.010(2) oxwpt not d. 2. Dimansions In Inches ovar milllmotars: ' 3. Dlmonsions rm:rled wlthLapply oXty at body. 4. AJI unmark~d plns am case ground. PAL20R8B Price The autoselect mode provides manufacturer and device identification, and sector protection verification, through identifier codes output on DQ7-DQO. This mode is primarily intended for programming equipment to automatically match a device to be programmed with its corresponding programming algorithm. However, the autoselect codes can also be accessed in-system through the command register. PAL20R8B on stock - Interface to the microprocessor with a data bus width of 8 0r 16 bits and with control lines according to Intel or Motorola standards. - A serial interface for making a direct connection with the optical receiver and transmitter of the fiber optic ring or with drivers to an electric ring or bus. Data and clock regeneration, the repeater for ring topologies and the serial transmitter and receiver are integrated. The signals are monitored and test signals generated. The se- rial interface operates up t0 16 Mbaud without external circuitry. - A dual port RAM (2048 ' 16 bit) for control and communication data. The organization of the memory is flexible. - Telegram processing for automatic transmission and monitoring of synchronous and data telegrams. Only transmission data which is intended for the particular interface user is processed. The transmitted data is ei- ther stored in the internal RAM (single or double buffer) or transferred via direct memory access (DMA). The transmission of service channel information over several communication cycles is executed automatically. In addition to the SERCOS interface the SERCON816 can also be used for other real-time communica- tions tasks. As an alternative to the fiber optical ring also bus topologies with RS-485 signals are supported (Fig. 4). The SERCON816 is therefore suitable for a wide range of applications. Remark: The SERCON816 is based on the former SERCON410B SERCOS interface controller. The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household ap- pliances). Consult our sales staff in advance for information on the following applications: . Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. . Any applications other than the standard applications intended. The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the prod- ucts, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifi- cations satisfy your requirements. |
