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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16C71 датащи(PDF) 52 Page - Microchip Technology |
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PIC16C71 датащи(HTML) 52 Page - Microchip Technology |
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52 / 337 page  PIC16C6X DS30234D-page 52 © 1997 Microchip Technology Inc. TABLE 5-1: PORTA FUNCTIONS TABLE 5-2: REGISTERS/BITS ASSOCIATED WITH PORTA Name Bit# Buffer Type Function RA0 bit0 TTL Input/output RA1 bit1 TTL Input/output RA2 bit2 TTL Input/output RA3 bit3 TTL Input/output RA4/T0CKI bit4 ST Input/output or external clock input for Timer0. Output is open drain type. RA5/SS (1) bit5 TTL Input/output or slave select input for synchronous serial port. Legend: TTL = TTL input, ST = Schmitt Trigger input Note 1: The PIC16C61 does not have PORTA<5> or TRISA<5>, read as ‘0’. Address 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 05h PORTA — — RA5(1) RA4 RA3 RA2 RA1 RA0 --xx xxxx --uu uuuu 85h TRISA — — PORTA Data Direction Register (1) --11 1111 --11 1111 Legend: x = unknown, u = unchanged, - = unimplemented locations read as '0'. Shaded cells are not used by PORTA. Note 1: PORTA<5> and TRISA<5> are not implemented on the PIC16C61, read as '0'. |
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