PIC16F914-I/PT Microchip Technology, PIC16F914-I/PT Datasheet - Page 65

• Manufacturer Part Number: PIC16F914-I/PT
• Description: IC PIC MCU FLASH 4KX14 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F914-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 44-TQFP, 44-VQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 35
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SSP/I2C/AUSART/SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 35
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPAC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.4
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.
REGISTER 4-7:
REGISTER 4-8:
 2004 Microchip Technology Inc.
Note:
PORTC and TRISC Registers
bit 7-0
bit 7-0
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.
PORTC – PORTC REGISTER (ADDRESS: 07h)
TRISC – PORTC TRI-STATE REGISTER (ADDRESS: 87h)
bit 7
RC<7:0>: PORTC I/O Pin bits
1 = Port pin is >V
0 = Port pin is <V
Legend:
R = Readable bit
- n = Value at POR
bit 7
TRISC<7:0>: PORTC Tri-State Control bits
1 = PORTC pin configured as an input (tri-stated)
0 = PORTC pin configured as an output
Legend:
R = Readable bit
- n = Value at POR
TRISC7
Note:
R/W-x
R/W-1
RC7
TRISC<7:6> always reads ‘1’ in XT, HS and LP OSC modes.
TRISC6
R/W-x
R/W-1
RC6
IH
IL
TRISC5
R/W-x
R/W-1
RC5
Preliminary
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
TRISC4
R/W-x
R/W-1
RC4
EXAMPLE 4-3:
BCF
BCF
CLRF
BSF
BCF
MOVLW
MOVWF
BCF
BSF
CLRF
BCF
BCF
TRISC3
R/W-x
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
STATUS,RP0 ;Bank 0
STATUS,RP1 ;
PORTC
STATUS,RP0 ;Bank 1
STATUS,RP1 ;
FFh
TRISC
STATUS,RP0 ;Bank 2
STATUS,RP1 ;
LCDCON
STATUS,RP0 ;Bank 0
STATUS,RP1 ;
RC3
TRISC2
R/W-x
R/W-1
RC2
INITIALIZING PORTC
;Init PORTC
;Set RC<7:0> as inputs
;
;Disable VLCD<3:1>
;inputs on RC<2:0>
PIC16F91X
x = Bit is unknown
x = Bit is unknown
TRISC1
R/W-x
R/W-1
RC1
DS41250B-page 63
TRISC0
R/W-x
R/W-1
RC0
bit 0
bit 0