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PIC18F14K22LIN Datasheet(PDF) 21 Page - Microchip Technology |
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PIC18F14K22LIN Datasheet(HTML) 21 Page - Microchip Technology |
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21 / 62 page  2011 Microchip Technology Inc. Preliminary DS41580A-page 25 PIC18F14K22LIN REGISTER 3-4: WPUB: WEAK PULL-UP PORTB REGISTER R/W-1 R/W-1 R/W-1 R/W-1 U-0 U-0 U-0 U-0 WPUB7 WPUB6 WPUB5 WPUB4 — — — — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7-4 WPUB<7:4>: Weak Pull-up Enable bit 1 = Pull-up enabled 0 = Pull-up disabled bit 3-0 Unimplemented: Read as ‘0’ REGISTER 3-5: IOCB: INTERRUPT-ON-CHANGE PORTB REGISTER R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 IOCB7 IOCB6 IOCB5 IOCB4 — — — — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7-4 IOCB<7:4>: Interrupt-on-Change bits 1 = Interrupt-on-change enabled 0 = Interrupt-on-change disabled bit 3-0 Unimplemented: Read as ‘0’ TABLE 3-1: PORTB I/O SUMMARY Pin Function TRIS Setting I/O I/O Type Description RB4/AN10/SDI/ SDA RB4 0 O DIG LATB<4> data output. 1 I TTL PORTB<4> data input; Programmable weak pull-up. AN10 1 I ANA ADC input channel 10. RB5/AN11/RX/DT RB5 0 O DIG LATB<5> data output. 1 I TTL PORTB<5> data input; Programmable weak pull-up. RX 1 I ST Asynchronous serial receive data input (USART module). RB6/SCK/SCL RB6 0 O DIG LATB<6> data output. 1 I TTL PORTB<6> data input; Programmable weak pull-up. RB7/TX/CK RB7 0 O DIG LATB<7> data output. 1 I TTL PORTB<7> data input; Programmable weak pull-up. TX 1 ODIG Asynchronous serial transmit data output (USART module). Legend: DIG = Digital level output; TTL = TTL input buffer; ST = Schmitt Trigger input buffer; ANA = Analog level input/output; x = Don’t care (TRIS bit does not affect port direction or is overridden for this option). |
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