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PIC16F883-E/MLSQTP 데이터시트(PDF) 48 Page - Microchip Technology |
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PIC16F883-E/MLSQTP 데이터시트(HTML) 48 Page - Microchip Technology |
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48 / 288 page ![]() PIC16F882/883/884/886/887 DS41291D-page 46 Preliminary © 2007 Microchip Technology Inc. 3.2.3.8 RA7/OSC1/CLKIN Figure 3-8 shows the diagram for this pin. This pin is configurable to function as one of the following: • a general purpose I/O • a crystal/resonator connection • a clock input FIGURE 3-8: BLOCK DIAGRAM OF RA7 TABLE 3-1: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA I/O Pin VDD VSS D Q CK Q D Q CK Q Data Bus RD PORTA WR PORTA WR TRISA RD TRISA INTOSC Mode OSC1 CLKIN Circuit Oscillator Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on POR, BOR Value on all other Resets ADCON0 ADCS1 ADCS0 CHS3 CHS2 CHS1 CHS0 GO/DONE ADON 0000 0000 0000 0000 ANSEL ANS7 ANS6 ANS5 ANS4 ANS3 ANS2 ANS1 ANS0 1111 1111 1111 1111 CM1CON0 C1ON C1OUT C1OE C1POL — C1R C1CH1 C1CH0 0000 -000 0000 -000 CM2CON0 C2ON C2OUT C2OE C2POL — C2R C2CH1 C2CH0 0000 -000 0000 -000 CM2CON1 MC1OUT MC2OUT C1RSEL C2RSEL — — T1GSS C2SYNC 0000 --10 0000 --10 PCON — — ULPWUE SBOREN — —POR BOR --01 --qq --0u --uu OPTION_REG RBPU INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111 PORTA RA7 RA6 RA5 RA4 RA3 RA2 RA1 RA0 xxxx xxxx uuuu uuuu SSPCON WCOL SSPOV SSPEN CKP SSPM3 SSPM2 SSPM1 SSPM0 0000 0000 0000 0000 TRISA TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 1111 1111 1111 1111 Legend: x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTA. |
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