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UPSD3312D Datasheet(PDF) 113 Page - STMicroelectronics |
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UPSD3312D Datasheet(HTML) 113 Page - STMicroelectronics |
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113 / 272 page ![]() Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) UPSD33xx Serial UART interfaces Doc ID 9685 Rev 7 113/272 Figure 27. UART mode 0, block diagram Figure 28. UART mode 0, timing diagram AI06824 Zero Detector Internal Bus Tx Control Rx Control Internal Bus SBUF Write to SBUF Read SBUF Load SBUF SBUF Input Shift Register Shift Shift Clock Serial Port Interrupt fOSC/12 REN R1 Rx Clock Start Tx Clock Start Shift Shift Send Receive T R CL DS Q 7 6 5 4 3 2 1 0 RxD P3.0 Alt Input Function RxD Pin TxD Pin AI06825 Write to SBUF Send Shift RxD (Data Out) TxD (Shift Clock) TI Write to SCON RI Receive Shift RxD (Data In) TxD (Shift Clock) Clear RI Receive Transmit D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 |
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