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UPSD3422 Datasheet(PDF) 144 Page - STMicroelectronics |
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UPSD3422 Datasheet(HTML) 144 Page - STMicroelectronics |
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144 / 300 page  Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) SPI (synchronous peripheral interface) UPSD3422, UPSD3433, UPSD3434, UPSD3454 144/300 Figure 44. SPI full-duplex data exchange Figure 45. SPI receive operation example SPI bus Slave device Master device AI10485b SS SPITxD SPIRxD Baud rate generator 8-bit shift register 8-bit shift register SPICLK MOSI MISO SCLK Bit7 SPICLK (SPO=0) SPICLK (SPO=1) SPIRXD Bit0 Bit1 Bit7 Bit0 Bit1 Bit7 1 frame RISF RORIS BUSY SPIINTR SPIRDR Full interrupt requested Interrupt handler read data in SPIRDR SPIRDR Full interrupt requested Transmit End interrupt requested AI07855 Obsolete Product(s) - Obsolete Product(s) |
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