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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST72344K2 датащи(PDF) 130 Page - STMicroelectronics |
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ST72344K2 датащи(HTML) 130 Page - STMicroelectronics |
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130 / 247 page  On-chip peripherals ST72344xx, ST2345xx 130/247 Doc ID 12321 Rev 6 peripherals that have shift registers (e.g. LCD drivers). The clock phase and polarity are software programmable. ● TDO: Transmit Data Output. When the transmitter is disabled, the output pin returns to its I/O port configuration. When the transmitter is enabled and nothing is to be transmitted, the TDO pin is at high level. ● RDI: Receive Data Input is the serial data input. Oversampling techniques are used for data recovery by discriminating between valid incoming data and noise. Through these pins, serial data is transmitted and received as frames comprising: ● An Idle Line prior to transmission or reception ● A start bit ● A data word (8 or 9 bits) least significant bit first ● A Stop bit indicating that the frame is complete. This interface uses two types of baud rate generator: ● A conventional type for commonly-used baud rates, ● An extended type with a prescaler offering a very wide range of baud rates, even with non-standard oscillator frequencies. |
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