Vpl-et-51 embedded trainer for philips 89c51rd2general descriptionembedded trainer has been designed by using philips 89c51rd2 microcontroller. This controller provides in-system as well as in circuit programming so that one may be able to write program and download directly in the controller through serial port without removing it from the system.system specificationcpu : philips 89s1rd2x microcontroller16x2 lcd modulesix seven segment displaysstepper motor controller interface8x8 led matrix displayewsn status led's 12 nos.adc/dac interfacefour data switchesswitch arrayat24c16 serial eepromon-chip flash program memory with in-system programming (isp) and in-application programming (iap) capabilityboot rom contains low level flash programming routines for downloading via the uartcan be programmed by the end-user application (iap)parallel programming with 87c51 compatible hardware interface to programmersupports 6-clock/12-clock mode via parallel programmer (default clock mode after chiperase is 12-clock)6-clock/12-clock mode flash bit erasable and programmable via isp6-clock/12-clock mode programmable “on-the-fly” by sfr bitperipherals (pca, timers, uart) may use either 6-clock or 12-clock mode while the cpu is in 6-clock modespeed up to 20 mhz with 6-clock cycles per machine cycle (40 mhz equivalent performance); up to 33 mhz with 12 clocks per machine cyclefully static operationram expandable externally to 64 kbytesfour interrupt priority levelsseven interrupt sourcesfour 8-bit i/o portsfull-duplex enhanced uartframing erro detectionautomatic address recognitionpower control modesclock can be stopped and resumedidle modepower down modeprogrammable clock-out pinsecond dptr registerasynchronous port resetlow emi (inhibit ale)programmable counter array (pca)pwmcapture/comparedaughter boards availableboard for microchip pic16f877/16f84/16f876board for motorola 68hc11board for xilinx spartan xc2s50 (50 k gates)board for xilinx spartan xc2s100 (100 k gates)board for xilinx spartan xc2s200 (200 k gates)
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