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PIC16LC554 데이터시트(PDF) 24 Page - Microchip Technology |
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PIC16LC554 데이터시트(HTML) 24 Page - Microchip Technology |
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24 / 96 page ![]() PIC16C55X(A) DS40143B-page 24 Preliminary © 1997 Microchip Technology Inc. TABLE 5-1: PORTA FUNCTIONS TABLE 5-2: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA Name Bit # Buffer Type Function RA0 bit0 ST Input/output RA1 bit1 ST Input/output RA2 bit2 ST Input/output RA3 bit3 ST Input/output RA4/T0CKI bit4 ST Input/output or external clock input for TMR0. Output is open drain type. Legend: ST = Schmitt Trigger input Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on POR Value on All Other Resets 05h PORTA — — — RA4 RA3 RA2 RA1 RA0 ---x xxxx ---u uuuu 85h TRISA — — — TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 ---1 1111 ---1 1111 Legend: — = Unimplemented locations, read as ‘0’ Note: Note: Shaded bits are not used by PORTA. |
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