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PIC16C925-S/CL датащи(PDF) 34 Page - Microchip Technology |
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PIC16C925-S/CL датащи(HTML) 34 Page - Microchip Technology |
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34 / 182 page ![]() PIC16C925/926 DS39544A-page 32 Preliminary 2001 Microchip Technology Inc. TABLE 4-3: PORTB FUNCTIONS TABLE 4-4: SUMMARY OF REGISTERS ASSOCIATED WITH PORTB Name Bit# Buffer Function RB0/INT bit0 TTL/ST Input/output pin or external interrupt input. Internal software programmable weak pull-up. This buffer is a Schmitt Trigger input when configured as the external interrupt. RB1 bit1 TTL Input/output pin. Internal software programmable weak pull-up. RB2 bit2 TTL Input/output pin. Internal software programmable weak pull-up. RB3 bit3 TTL Input/output pin. Internal software programmable weak pull-up. RB4 bit4 TTL Input/output pin (with interrupt-on-change). Internal software programmable weak pull-up. RB5 bit5 TTL Input/output pin (with interrupt-on-change). Internal software programmable weak pull-up. RB6 bit6 TTL/ST Input/output pin (with interrupt-on-change). Internal software programmable weak pull-up. Serial programming clock. This buffer is a Schmitt Trigger input when used in Serial Programming mode. RB7 bit7 TTL/ST Input/output pin (with interrupt-on-change). Internal software programmable weak pull-up. Serial programming data. This buffer is a Schmitt Trigger input when used in Serial Programming mode. Legend: TTL = TTL input, ST = Schmitt Trigger input Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on Power-on Reset Value on all other RESETS 06h, 106h PORTB RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 xxxx xxxx uuuu uuuu 86h, 186h TRISB PORTB Data Direction Control Register 1111 1111 1111 1111 81h, 181h OPTION RBPU INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111 Legend: x = unknown, u = unchanged. Shaded cells are not used by PORTB. |
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