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PIC18F23K22-E/ML датащи(PDF) 207 Page - Microchip Technology |
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PIC18F23K22-E/ML датащи(HTML) 207 Page - Microchip Technology |
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207 / 496 page ![]() 2010 Microchip Technology Inc. Preliminary DS41412C-page 207 PIC18(L)F2X/4XK22 15.0 MASTER SYNCHRONOUS SERIAL PORT (MSSP1 AND MSSP2) MODULE 15.1 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, display 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 15-1 is a block diagram of the SPI interface module. FIGURE 15-1: MSSPx BLOCK DIAGRAM (SPI MODE) ( ) Read Write Data Bus SSPxSR Reg SSPxM<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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