PIC16F1518-E/SP Microchip Technology, PIC16F1518-E/SP Datasheet - Page 122

• Manufacturer Part Number: PIC16F1518-E/SP
• Description: 28-pin, 28KB Flash, 1024B RAM, 10-bit ADC, 2xCCP, SPI, MI2C, EUSART, 2.3V-5.5V 2
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1518-E/SP

• Processor Series: PIC16F151x
• Core: PIC
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 16 KB
• Data Ram Size: 1 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 25
• Number Of Timers: 3
• Operating Supply Voltage: 2.3 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Package / Case: PDIP-28
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 25
• Eeprom Size: -
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 5.5 V
• Data Converters: A/D 17x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Lead Free Status / Rohs Status: Details

PIC16(L)F1516/7/8/9
12.4
PORTC is a 8-bit wide bidirectional port. The
corresponding
(Register
corresponding PORTC pin an input (i.e., put the
corresponding output driver in a High-Impedance mode).
Clearing a TRISC bit (= 0) will make the corresponding
PORTC pin an output (i.e., enable the output driver and
put the contents of the output latch on the selected pin).
Example 12-1
Reading the PORTC register
status of the pins, whereas writing to it will write to the
PORT latch. All write operations are read-modify-write
operations. Therefore, a write to a port implies that the
port pins are read, this value is modified and then written
to the PORT data latch (LATC).
The TRISC register
PORTC pin output drivers, even when they are being
used as analog inputs. The user should ensure the bits in
the TRISC register are maintained set when using them
as analog inputs. I/O pins configured as analog input
always read ‘0’.
12.4.1
The ANSELC register
configure the Input mode of an I/O pin to analog.
Setting the appropriate ANSELC bit high will cause all
digital reads on the pin to be read as ‘0’ and allow
analog functions on the pin to operate correctly.
The state of the ANSELC bits has no affect on digital out-
put functions. A pin with TRIS clear and ANSELC set will
still operate as a digital output, but the Input mode will be
analog. This can cause unexpected behavior when exe-
cuting read-modify-write instructions on the affected
port.
DS41452B-page 122
Note:
PORTC Registers
12-12). Setting a TRISC bit (= 1) will make the
ANSELC REGISTER
The ANSELC register must be initialized
to configure an analog channel as a digital
input. Pins configured as analog inputs
will read ‘0’.
shows how to initialize an I/O port.
data
direction
(Register
(Register
(Register
12-12) controls the
register
12-14) is used to
12-11) reads the
is
TRISC
Preliminary
12.4.2
Each PORTC pin is multiplexed with other functions. The
pins, their combined functions and their output priorities
are shown in
When multiple outputs are enabled, the actual pin
control goes to the peripheral with the highest priority.
Analog input and some digital input functions are not
included in the list below. These input functions can
remain active when the pin is configured as an output.
Certain digital input functions override other port
functions and are included in
TABLE 12-7:
Note 1:
Pin Name
2:
RC0
RC1
RC2
RC3
RC4
RC5
RC6
RC7
Priority listed from highest to lowest.
RC3 and RC4 read the I
I
PORTC FUNCTIONS AND OUTPUT
PRIORITIES
2
Table
C mode is enabled.
PORTC OUTPUT PRIORITY
12-7.
 2010 Microchip Technology Inc.
Function Priority
Table
SOSCO
RC0
SOSCI
CCP2
RC1
CCP1
RC2
SCL
SCK
RC3
SDA
RC4
SDO
RC5
CK
TX
RC6
DT
RC7
12-7.
2
C ST input when
(2)
(2)
(1)