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INTEDG датащи(PDF) 243 Page - Microchip Technology |
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INTEDG датащи(HTML) 243 Page - Microchip Technology |
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243 / 478 page ![]() 2010-2012 Microchip Technology Inc. DS41414D-page 243 PIC16(L)F1946/47 24.0 MASTER SYNCHRONOUS SERIAL PORT (MSSP1 AND MSSP2) MODULE 24.1 Master SSPx (MSSPx) Module Overview The Master Synchronous Serial Port (MSSPx) module is a serial interface useful for communicating with other peripheral or microcontroller devices. These peripheral devices may be serial EEPROMs, shift registers, dis- play drivers, A/D converters, etc. The MSSPx module can operate in one of two modes: • Serial Peripheral Interface (SPI) • Inter-Integrated Circuit (I2C™) The SPI interface supports the following modes and features: •Master mode • Slave mode • Clock Parity • Slave Select Synchronization (Slave mode only) • Daisy-chain connection of slave devices Figure 24-1 is a block diagram of the SPI interface module. FIGURE 24-1: MSSPX BLOCK DIAGRAM (SPI MODE) ( ) Read Write Data Bus SSPxSR Reg SSPM<3:0> bit 0 Shift Clock SSx Control Enable Edge Select Clock Select TMR2 Output TOSC Prescaler 4, 16, 64 2 Edge Select 2 (CKP, CKE) 4 TRIS bit SDOx SSPxBUF Reg SDIx SSx SCKx Baud Rate Generator (SSPxADD) |
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