PIC16F913 datasheet(53/272 Pages) MICROCHIP

53 / 272 page

Preliminary

DS41250E-page 51

PIC16F917/916/914/913

3.4

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, when written, will modify the contents of the

PORTC latch; thus, modifying the value driven out on

a pin if the corresponding TRISC bit is configured for

output.

EXAMPLE 3-3:

INITIALIZING PORTC

PORTC – PORTC REGISTER (ADDRESS: 07h)

TRISC – PORTC TRI-STATE REGISTER (ADDRESS: 87h)

Note:

Analog lines that carry LCD signals

(i.e., SEGx, VLCDy, where x and y are

segment and LCD bias voltage identifiers)

are shown as direct connections to the

device pins. The signals are outputs from

the LCD module and may be tri-stated,

depending on the configuration of the LCD

module.

BCF

STATUS,RP0 ;Bank 0

BCF

STATUS,RP1 ;

CLRF

PORTC

;Init PORTC

BSF

STATUS,RP0 ;Bank 1

BCF

STATUS,RP1 ;

MOVLW

FFh

;Set RC<7:0> as inputs

MOVWF

TRISC

;

BCF

STATUS,RP0 ;Bank 2

BSF

STATUS,RP1 ;

CLRF

LCDCON

;Disable VLCD<3:1>

;inputs on RC<2:0>

BCF

STATUS,RP0 ;Bank 0

BCF

STATUS,RP1 ;

R/W-x

RC7

RC6

RC5

RC4

RC3

RC2

RC1

RC0

bit 7

bit 0

bit 7-0

RC<7:0>: PORTC I/O Pin bits

= Port pin is >VIH

= Port pin is <VIL

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

R/W-1

TRISC7

TRISC6

TRISC5

TRISC4

TRISC3

TRISC2

TRISC1

TRISC0

bit 7

bit 0

bit 7-0

TRISC<7:0>: PORTC Tri-State Control bits

= PORTC pin configured as an input (tri-stated)

= PORTC pin configured as an output

Note:

TRISC<7:6> always reads ‘1’ in XT, HS and LP OSC modes.

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

PIC16F913 bảng dữ liệu(PDF) 53 Page - Microchip Technology

PIC16F913 bảng dữ liệu(HTML) 53 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL