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PIC16F946-E/MLQTP Datasheet(PDF) 64 Page - Microchip Technology |
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PIC16F946-E/MLQTP Datasheet(HTML) 64 Page - Microchip Technology |
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64 / 330 page  PIC16F913/914/916/917/946 DS41250F-page 62 © 2007 Microchip Technology Inc. 3.5 PORTC and TRISC Registers PORTC is an 8-bit bidirectional port. PORTC is multiplexed with several peripheral functions. PORTC pins have Schmitt Trigger input buffers. All PORTC pins have latch bits (PORTC register). They will modify the contents of the PORTC latch (when written); thus, modifying the value driven out on a pin if the corresponding TRISC bit is configured for output. EXAMPLE 3-3: INITIALIZING PORTC BANKSEL PORTC ; CLRF PORTC ;Init PORTC BANKSEL TRISC ; MOVLW 0FFh ;Set RC<7:0> as inputs MOVWF TRISC ; BANKSEL LCDCON ; CLRF LCDCON ;Disable VLCD<3:1> ;inputs on RC<2:0> REGISTER 3-8: PORTC: PORTC REGISTER R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0 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 7-0 RC<7:0>: PORTC I/O Pin bits 1 = Port pin is >VIH min. 0 = Port pin is <VIL max. REGISTER 3-9: TRISC: PORTC TRI-STATE REGISTER R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0 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 7-0 TRISC<7:0>: PORTC Tri-State Control bits 1 = PORTC pin configured as an input (tri-stated) 0 = PORTC pin configured as an output |
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