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MCP2120 датащи(PDF) 45 Page - Microchip Technology |
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MCP2120 датащи(HTML) 45 Page - Microchip Technology |
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45 / 64 page ![]() 2001 Microchip Technology Inc. DS51246A-page 41 MCP2120/MCP2150 USER’S GUIDE 12 Chapter 5. Using a PICDEM™ 1 or PICDEM™ 2 Board as Host 5.1 Using the PICDEM 1 Board The PICDEM™ 1 board may be used as the host controller in an IrDA standard compatible system. PortB can be used to display received characters, while any of the other ports would be used for the UART and control signals. A PICmicro® microcontroller may be selected that has a hardware UART, or the UART functionality may be implemented in software. Figure 5.1 shows the parts layout (silk-screen) for the PICDEM 1 board. Figure 5.1: PICDEM 1 Parts Layout Note 1: U1 is for use with any 40-pin PIC17C4X device. 2: U2 is for use with any 18-pin PIC16C5X, PIC16CXXX device. 3: U3 is for use with any 28-pin PIC16C5X, PIC16CXXX device. S2 C16 U5 Y2 J2 CR1 J1 U4 R5 R4 R6 R7 R3 R1 R2 C15 C6 J3 C13 C11 C14 C9 C8 C7 C4 C3 C5 C2 C1 RN1 RN2 S3 S1 U2 U3 U1 PICDEM-I CONNECTION DIRECT SUPPLY +5V PWR PIC16C54/56/58 PIC16C55/57 PIC16C71/84 PIC17C42 DEMO BOARD +9V IN ©1993 POT CH0 RTCC MCLR RA1 PORT B 0 1 2 3 4 5 6 7 Y1 ® |
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