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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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GMS81C2012 데이터시트(PDF) 65 Page - Hynix Semiconductor |
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GMS81C2012 데이터시트(HTML) 65 Page - Hynix Semiconductor |
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65 / 107 page  HYUNDAI MicroElectronics GMS81C2012/GMS81C2020 MAR. 2000 Ver 1.00 65 14. SERIAL PERIPHERAL INTERFACE The Serial Peripheral Interface (SPI) module is a serial in- terface useful for communicating with other peripheral of microcontroller devices. These peripheral devices may be serial EEPROMs, shift registers, display drivers, A/D con- verters, etc. The Serial Peripheral Interface(SPI) is 8-bit clock synchronous type and consists of serial I/O register, serial I/O mode register, clock selection circuit octal counter and control circuit. The SOUT pin is designed to input and output. So Serial Peripheral Interface(SPI) can be operated with minimum two pin Figure 14-1 SPI Block Diagram ÷ 4 ÷ 16 XIN PIN MUX SCK[1:0] 00 01 10 11 SCLK PIN SPI Shift Input shift register SIOR Clock Clock Octal Serial communication Interrupt SIOIF SOUT Internal Bus SIOSF Counter SCK[1:0] “11” overflow not “11” Complete Timer0 Overflow IOSWIN SIN PIN IOSW PIN SOUT IOSWIN CONTROL CIRCUIT “0” “1” POL 1 0 Start SIOST |
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