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PIC16F946-E/MLQTP датащи(PDF) 71 Page - Microchip Technology |
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PIC16F946-E/MLQTP датащи(HTML) 71 Page - Microchip Technology |
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71 / 330 page ![]() © 2007 Microchip Technology Inc. DS41250F-page 69 PIC16F913/914/916/917/946 3.5.1.8 RC7/RX/DT/SDI/SDA/SEG8 Figure 3-21 shows the diagram for this pin. The RC7 pin is configurable to function as one of the following: • a general purpose I/O • an asynchronous serial input • a synchronous serial data I/O • a SPI data input •an I2C data I/O • an analog output for the LCD FIGURE 3-21: BLOCK DIAGRAM OF RC7 Data Bus WR PORTC WR TRISC RD PORTC RX/SDI Input SEG8 0 1 I2C™ Data Out Schmitt Trigger I/O Pin Data Latch TRIS Latch Q D Q CK Q D Q CK I2C™ Drive SE8 and LCDEN RD TRISC PORT/(USART or I2C™) Select USART/I2C™ Mode Select(1) DT Data Out or SCEN Drive SE8 and LCDEN Note 1: If all three data output sources are enabled, the following priority order will be used: • USART data (highest) • SSP data • PORT data (lowest) VDD VSS |
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