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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATmega32U2 датащи(PDF) 138 Page - ATMEL Corporation |
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ATmega32U2 датащи(HTML) 138 Page - ATMEL Corporation |
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138 / 314 page  138 7799B–AVR–07/09 ATmega8U2/16U2/32U2 17. SPI – Serial Peripheral Interface 17.1 Features • Full-duplex, Three-wire Synchronous Data Transfer • Master or Slave Operation • LSB First or MSB First Data Transfer • Seven Programmable Bit Rates • End of Transmission Interrupt Flag • Write Collision Flag Protection • Wake-up from Idle Mode • Double Speed (CK/2) Master SPI Mode 17.2 Overview The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the ATmega8U2/16U2/32U2 and peripheral devices or between several AVR devices. USART can also be used in Master SPI mode, see “USART in SPI Mode” on page 176. The Power Reduction SPI bit, PRSPI, in “Minimizing Power Consumption” on page 44 on page 50 must be written to zero to enable SPI module. Figure 17-1. SPI Block Diagram (1) Note: 1. Refer to Figure 1-1 on page 2, and Table 12-6 on page 77 for SPI pin placement. DIVIDER /2/4/8/16/32/64/128 |
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