Technology of Q 2500 colour TV set

Technology of Q 2500 colour TV setposes cannot be replaced by one from a normalTV set.4.1.3 The SDA 6000 central control unitA Siemens SDA 6000 is used in the Q 2500chassis for control of device functions. This 16bit processor is a development of the C 166family of single chip CMOS microcontrollers. Itcombines excellent CPU characteristics of upto 8 million computation operations per secondwith high functionality, flexibility and highcapacity input and output ports. The SAD6000 has 5 Ports (Port 2 – Port 6) with a totalof 44 inputs and outputs. It was designed especiallyfor applications, where cost plays acritical role. This makes the processor suitablefor use in colour TV sets.SDA 6000CVBS1CVBS116...21Slicer1Slicer2ACQ16AMII-CacheBootRom32Instr./Data16CPU-CoreC166DataDataData1616InternalRAM2 Kbyte16ExternalBusInterface16D-Cache16X-BusInstr./DataInterrupt ControllerPECOSC(6 MHz)XTAL36 nodes (8 ext.)XRAM2 KByteGASRUFIFOD-Synch4-ChannelADC7-bitUSARTASCSPISSCGPT1T2T3T4GPT2T5T6I2C-BusRTCWatchdogOCDSJTAG3 x 6 BitDACPort 5 Port 3 Port 2 Port 4 Port 643615887HVIn the Q 2500 chassis the processor must fulfilthe following functions:- Oscillator for generation of the CPU cyclefrequency.- Generation of the clock frequency for thebus systems.- Processing of the RSIG signals and localoperation commands.- Generation of the I²C bus systems for controlof the HF/IF units, processing of pictures,video text, PIP and audio, for communicationwith the memory IC, the SATreceiver unit and the interface selection.Document Q 2500 66 © Loewe ProCollege