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STM32H533CE 데이터시트(PDF) 191 Page - STMicroelectronics |
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STM32H533CE 데이터시트(HTML) 191 Page - STMicroelectronics |
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191 / 231 page ![]() DS14539 Rev 1 191/231 STM32H533xx Electrical characteristics 200 Figure 49. SPI timing diagram - Master mode 1. The SS input can be configured to active low or active high. Figure 50. SPI timing diagram - Slave mode and CPHA = 0 2. When using PB13. 3. Maximum frequency in slave transmitter mode is determined by the sum of tv(SO) and tsu(MI) which must fit into SCK low or high phase preceding the SCK sampling edge. This value can be achieved when the SPI communicates with a master having tsu(MI) = 0 while Duty(SCK) = 50%. 4. When using PB14. 5. tSCK = tker_ck * Baud rate prescaler. MSv69586V2 th(MI) tc(SCK) tw(SCKH) tw(SCKL) SS input (1) CPHA=0 CPOL=0 CPHA=0 CPOL=1 MOSI output MISO input First bit OUT Last bit OUT Next bits OUT First bit IN Last bit IN Next bits IN CPHA=1 CPOL=0 CPHA=1 CPOL=1 High tv(MO) th(MO) tsu(MI) MSv41658V1 NSS input CPHA=0 CPOL=0 CPHA=0 CPOL=1 MISO output MOSI input tsu(SI) th(SI) tw(SCKL) tw(SCKH) tc(SCK) tr(SCK) th(NSS) tdis(SO) tsu(NSS) ta(SO) tv(SO) Next bits IN Last bit OUT First bit IN First bit OUT Next bits OUT th(SO) tf(SCK) Last bit IN |
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