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FT311D-32L1C-R датащи(PDF) 29 Page - Future Technology Devices International Ltd. |
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FT311D-32L1C-R датащи(HTML) 29 Page - Future Technology Devices International Ltd. |
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29 / 40 page ![]() Copyright © 2013 Future Technology Devices International Limited 29 DS_FT311D USB ANDROID HOST IC Datasheet Version 1.2 Document No.: FT_000660 Clearance No.: FTDI# 305 8.6 USB to SPI (Master) Converter FT311D 1 2 3 4 5 SHIELD Ferrite Bead GND GND 3V3 GND VCCIO VREGOUT USBDM USBDP 1V8 PLL VCC IN RESET# 100nF 100nF 4.7uF + IOBUS4 VCC 3V3 REGULATOR 5V 27R 27R 100nF 3V3 IOBUS0 IOBUS1 IOBUS2 IOBUS3 IOBUS5 IOBUS6 IOBUS7 GND 47pF 47pF CNFG0 CNFG1 CNFG2 GND SPI SLAVE e.g. EEPROM, RTC, CODECs 3V3 10k SPI_M_CLK SPI_M_SS# SPI_M_MISO SPI_M_MOSI Figure 8.6 Application Example showing USB to SPI (Master) Converter This example shows the CNFGx pins set for mode 101 – SPI (Master). The FT311D SPI Master controls the slave select line and the clock to the external SPI slave. SPI_M_MOSI is the FT311D data output line which may be Most or Least Significant Bit first. SPI_M_MISO is the FT311D data input line which may be Most or Least Significant Bit first. Example SPI Slave devices include memory, RTC, and codec devices. The unused pins may be left unterminated. |
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