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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SH7708 датащи(PDF) 360 Page - Renesas Technology Corp |
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SH7708 датащи(HTML) 360 Page - Renesas Technology Corp |
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360 / 633 page  342 • Internal or external transmit/receive clock source: From either baud rate generator (internal) or SCK pin (external) • Four types of interrupts: Transmit-data-empty, transmit-end, receive-data-full, and receive- error interrupts are requested independently. • When the SCI is not in use, it can be stopped by halting the clock supplied to it, saving power. 13.1.2 Block Diagram Figure 13.1 shows a block diagram of the SCI. RxD TxD SCK SCI SCBRR SCSCR SCSSR SCSMR SCTDR SCTSR SCRDR SCRSR SCSPTR Parity generation Parity check Clock External clock Module data bus Internal data bus P φ P φ/4 P φ/16 P φ/64 TEI TXI RXI ERI Baud rate generator Transmit/ receive control SCRSR: SCRDR: SCTSR: SCTDR: Receive shift register Receive data register Transmit shift register Transmit data register SCSMR: SCSCR: SCSSR: SCBRR: SCSPTR: Serial mode register Serial control register Serial status register Bit rate register Serial port register Figure 13.1 SCI Block Diagram |
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