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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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9202 数据表(PDF) 69 Page - STMicroelectronics |
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9202 数据表(HTML) 69 Page - STMicroelectronics |
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69 / 175 page  69/175 UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV Figure 32. Serial Port Mode 2, Waveforms Figure 33. Serial Port Mode 3, Block Diagram AI06845 Write to SBUF Data Shift TxD TI Rx Clock RxD Bit Detector Sample Times Shift RI S1P1 ÷16 Reset Receive Transmit D0 D1 D2 D3 D4 D5 D6 D7 Send Tx Clock Start Bit Stop Bit TB8 D0 D1 D2 D3 D4 D5 D6 D7 Start Bit Stop Bit RB8 Stop Bit Generator AI06846 Zero Detector Internal Bus Tx Control Rx Control Internal Bus SBUF Write to SBUF Read SBUF Load SBUF SBUF Input Shift Register Shift Serial Port Interrupt Rx Clock Start Tx Clock Start Shift Shift Send Load SBUF TI RI CL DS Q 1FFh TxD Data Rx Detector RxD 1-to-0 Transition Detector ÷16 Sample ÷16 ÷2 TB8 Timer1 Overflow Timer2 Overflow 0 01 1 01 TCLK RCLK SMOD |
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