Features: · Two test input T0 ( ANDed with P1 input lines ), T1· 3 single-level vectored interrupt sources: external ( T0/INT and Port 1, for keypad press wake-up functions), timer/counter ( T1 ) and hardware modulator interrupt· 8-bit programmable timer/counter with 5-bit pre-scalier· On-boar...
YKP1568VG5: Features: · Two test input T0 ( ANDed with P1 input lines ), T1· 3 single-level vectored interrupt sources: external ( T0/INT and Port 1, for keypad press wake-up functions), timer/counter ( T1 ) ...
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The YKP1568VG5 is stand-alone microcontroller designate for use in remote control transmitters for a wide range of applications. The YKP1568VG5 for this purpose provides number of dedicated hardware functions for remote controller applications These include the following additional blocks to the YKP1568VG X core:
- Interrupt Gate
- Hardware Modulator
- Output Driver
- Watchdog Timer.
When the YKP1568VG5 transmitter is not in use the microcontroller is in STOP mode and the oscillator is HALTED. The AND gate from P1 Port line provides the wake-up to end STOP mode.
The Hardware Modulator produces pulse bursts according to the required protocol. By software the `ON-time` and the `OFF-time` of each pulse and the number of pulses are controlled.The Output Driver can handle sufficient current to drive a single transistor, and this can provide the required current for the LED. The Watchdog Timer will reset the YKP1568VG5 when YKP1568VG5 has not been reloaded ( reset ) in time, because the program has run out of sequence ( endless loop, continuous IDLE mode, etc. ). During STOP mode the oscillator is halted, so then the Watchdog Timer is not running.
YKP1568VG5 Device is functionally identical to the PCA84c122A, Philips.